Skip to main content

Home/ History Readings/ Group items tagged detection

Rss Feed Group items tagged

criscimagnael

English Teenager Finds Bronze Age Ax Using a Metal Detector - The New York Times - 0 views

  • On her third day out with a metal detector, Milly Hardwick, 13, found a hoard of items from more than 3,000 years ago. “We were just laughing our heads off,” she said.
  • In Britain, the biggest successes often involve discoveries of treasures from ancient eras — like the 3,000-year-old ax that a teenager unearthed in eastern England in September.
  • Milly, her father and her grandfather started dancing out of excitement, she said. They kept digging and found a hoard of other artifacts, including socketed ax heads, winged ax heads, cake ingots and blade fragments made of bronze. Milly’s findings were reported last month by The Searcher, a magazine about metal detecting.
  • ...7 more annotations...
  • the council confirmed that 200 items, believed to be from the Bronze Age, were found.
  • The Bronze Age in Britain lasted from 2,300 B.C. to 800 B.C., during a period referred to as prehistoric England, before there were written records,
  • Bronze axes, she said, are “common enough that you would expect to find one, but rare enough to be excited when you do.” She added, “What’s unique about this one is the number of finds in one place, making it a hoard.”
  • Over the last two decades, museums around Britain have acquired more than 5,000 artifacts that were found by members of the public, including Bronze Age axes, Iron Age cauldrons and Roman coin hoards.
  • The growing popularity of metal detecting as a hobby meant that more historical objects were being found, including some of archaeological significance that did not meet the previous “treasure” definition, which had been in place since the 1990s. In 2019, 1,311 pieces went through the process in which a committee determines whether an item should be considered treasure, the highest number on record. In 1997, 79 pieces were found.
  • Since her discovery, Milly has gone out on most Sundays with her grandfather and father in search of more items. She says that when she grows up, she wants to be an archaeologist.
  • “The Romans have been there, everyone has been there — and we’re the ones to find it,”
lilyrashkind

Some evidence shows omicron appears in your throat first. Should at-home Covid tests ch... - 0 views

  • As omicron cases continue to sweep the United States, the Food and Drug Administration is being urged to gather more information about how well at-home Covid-19 tests are able to detect the variant.
  • But medical experts argue that anecdotes from people who test negative with a nasal swab at home but then test positive with a throat swab can be misleading. FDA officials say there isn’t enough data to support the practice. “We do know the tests are picking up on omicron, but with less sensitivity,” acting FDA Commissioner Dr. Janet Woodcock said during a Senate Health Committee hearing Tuesday. “What we need to do is to see whether the throat swab could provide more sensitivity.”
  • None of the at-home rapid antigen tests available over the counter in the U.S. are designed for throat swabs. There’s also a reason medical professionals are the ones who perform throat swabs for other infections, such as strep throat. Swabbing the back of your own throat is not easy to do. 
  • ...11 more annotations...
  • The United Kingdom’s National Health Service recommends swabbing both the nose and the throat when using a rapid antigen, or later flow, Covid test, the kind used at home.
  • “The virus grows in your nose and throat and somewhat at different time scales,” Michael Mina, chief science officer for the biotech software company eMed, who was an assistant professor of epidemiology at the Harvard T.H. Chan School of Public Health, said at a testing technology news briefing this week.
  • “The agency recommends that individuals closely follow the tests’ instructions,” FDA spokesperson Jim McKinney told NBC News in an email.
  • Dr. Jonathan Li, an infectious disease physician at the Brigham and Women’s Hospital in Boston, cautions against altering the testing strategy that has been validated and authorized by the FDA.
  • “What we’ve learned is that every variant seems to have its own characteristics, and it’s important that we not be locked into thinking we know everything based on what we’ve learned from the last variant,” he said
  • Before advocating the altered approach, Li said, he would need to see data that showed it was effective. User error will likely be higher with self-administered throat swabs compared with nasal swabs, he said.
  • “The nose and the throat have different pH levels and we have seen people take Coke or coffee and put it in an antigen test and had a line to appear,” she said. “We don’t know exactly why this happens, but the hypothesis is acidity.” 
  • Miller notes that a small preprint paper out of South Africa, which has not yet been peer-reviewed, suggested that more detectable virus may reside in the throat than in the nose when a person is infected with omicron compared to the delta variant, though the study compared PCR to antigen, or rapid, tests, which are not the same type of tests. 
  • Miller said that although she would not be surprised if omicron indeed does show up in the throat before it does in the nose, that concrete data has yet to be shown. 
  • According to Matt Binnicker, director of clinical virology at the Mayo Clinic, the fact that positivity rates are soaring in the U.S. is a testament to how well Covid tests are still working.
  • According to Miller, it’s best to take a rapid test on day one, day two and day three of symptoms if you are testing negative but your symptoms persist. You should also isolate. “If you have symptoms, you have Covid until proven otherwise,” she said. 
woodlu

The number of children in American hospitals with covid-19 is rising fast | The Economist - 0 views

  • These increases have been caused in part by the greater transmissibility of Omicron, which means more children are being infected with covid. But it is possible that the variant also poses a greater risk to youngster
  • The case-hospitalisation ratio in the last two weeks of December was 50% higher than in the two weeks before Omicron was first detected.
  • a near 50% increase in hospital admissions per 100,000 cases in children aged four or younger after the variant was first detected, and a 70% increase in unvaccinated children aged five to 11 (but a decrease in those over the age of 12).
  • ...8 more annotations...
  • Differences in vaccination rates provide another potential explanation. In America, 63% of adults are fully vaccinated and 24% have had a booster shot.
  • Figures on hospitalisations tend to fluctuate over time even without the emergence of new variants, so the increases are far from definitive proof that Omicron is riskier for children.
  • Omicron reproduces higher in the respiratory tract than previous variants, causing milder symptoms in adults as the virus does less damage to the lungs, but worse ones in children, because their smaller airways can become blocked more easily.
  • Fewer children have had the jab.
  • only 18% of five- to 11-year-olds have been fully vaccinated
  • A report from Britain’s health-security agency suggests that, for children above the age of five, Omicron presents a lower risk of hospitalisation than Delta.
  • Other British data show that, although more infants are being admitted to hospital with covid, the number in intensive care, the percentage needing ventilation and the average length of their stay have fallen compared with previous waves.
  • The vast majority of children infected with covid experience mild illness and are far less likely than older folk to need hospital treatment.
Javier E

AI 'Cheating' Is More Bewildering Than Professors Imagined - The Atlantic - 0 views

  • The problem breaks down into more problems: whether it’s possible to know for certain that a student used AI, what it even means to “use” AI for writing papers, and when that use amounts to cheating.
  • This is college life at the close of ChatGPT’s first academic year: a moil of incrimination and confusion
  • Reports from on campus hint that legitimate uses of AI in education may be indistinguishable from unscrupulous ones, and that identifying cheaters—let alone holding them to account—is more or less impossible.
  • ...10 more annotations...
  • Now it’s possible for students to purchase answers for assignments from a “tutoring” service such as Chegg—a practice that the kids call “chegging.”
  • when the AI chatbots were unleashed last fall, all these cheating methods of the past seemed obsolete. “We now believe [ChatGPT is] having an impact on our new-customer growth rate,” Chegg’s CEO admitted on an earnings call this month. The company has since lost roughly $1 billion in market value.
  • By 2018, Turnitin was already taking more than $100 million in yearly revenue to help professors sniff out impropriety. Its software, embedded in the courseware that students use to turn in work, compares their submissions with a database of existing material (including other student papers that Turnitin has previously consumed), and flags material that might have been copied. The company, which has claimed to serve 15,000 educational institutions across the world, was acquired for $1.75 billion in 2019. Last month, it rolled out an AI-detection add-in (with no way for teachers to opt out). AI-chatbot countermeasures, like the chatbots themselves, are taking over.
  • as the first chatbot spring comes to a close, Turnitin’s new software is delivering a deluge of positive identifications: This paper was “18% AI”; that one, “100% AI.” But what do any of those numbers really mean? Surprisingly—outrageously—it’s very hard to say for sure.
  • according to the company, that designation does indeed suggest that 100 percent of an essay—as in, every one of its sentences—was computer generated, and, further, that this judgment has been made with 98 percent certainty.
  • A Turnitin spokesperson acknowledged via email that “text created by another tool that uses algorithms or other computer-enabled systems,” including grammar checkers and automated translators, could lead to a false positive, and that some “genuine” writing can be similar to AI-generated writing. “Some people simply write very predictably,” she told me
  • Perhaps it doesn’t matter, because Turnitin disclaims drawing any conclusions about misconduct from its results. “This is only a number intended to help the educator determine if additional review or a discussion with the student is warranted,” the spokesperson said. “Teaching is a human endeavor.”
  • In other words, the student in my program whose work was flagged for being “100% AI” might have used a little AI, or a lot of AI, or maybe something in between. As for any deeper questions—exactly how he used AI, and whether he was wrong to do so—teachers like me are, as ever, on our own.
  • Rethinking assignments in light of AI might be warranted, just like it was in light of online learning. But doing so will also be exhausting for both faculty and students. Nobody will be able to keep up, and yet everyone will have no choice but to do so
  • Somewhere in the cracks between all these tectonic shifts and their urgent responses, perhaps teachers will still find a way to teach, and students to learn.
Javier E

The Cosmos Is Thrumming With Gravitational Waves, Astronomers Find - The New York Times - 0 views

  • an international consortium of research collaborations revealed compelling evidence for the existence of a low-pitch hum of gravitational waves reverberating across the universe.
  • The scientists strongly suspect that these gravitational waves are the collective echo of pairs of supermassive black holes — thousands of them, some as massive as a billion suns, sitting at the hearts of ancient galaxies up to 10 billion light-years away — as they slowly merge and generate ripples in space-time.
  • Each pair of supermassive black holes is generating a different note, Dr. Siemens said, “and what we’re receiving is the sum of all those signals at once.”
  • ...12 more annotations...
  • the results were consistent with Albert Einstein’s theory of general relativity, which describes how matter and energy warp space-time to create what we call gravity. As more data is gathered, this cosmic hum could help researchers understand how the universe achieved its current structure and perhaps reveal exotic types of matter that may have existed shortly after the Big Bang 13.7 billion years ago.
  • “The gravitational-wave background was always going to be the loudest, most obvious thing to find,” said Chiara Mingarelli, an astrophysicist at Yale University and a member of NANOGrav, which is funded by the National Science Foundation. “This is really just the beginning of a whole new way to observe the universe.”
  • Gravitational waves are created by any object that spins, such as the rotating remnants of stellar corpses, orbiting black holes or even two people “doing a do-si-do,” Dr. Mingarelli said. But unlike other types of waves, these ripples stretch and squeeze the very fabric of space-time, warping the distances between any celestial objects they pass by.
  • Gravitational waves were first detected in 2016 as audible chirps by the Laser Interferometer Gravitational-Wave Observatory, or LIGO, collaboration; the breakthrough solidified Einstein’s theory of general relativity as an accurate model of the universe and earned the project’s founders the Nobel Prize in Physics in 2017. But LIGO’s signals were mostly in the frequency range of a few hundred hertz, and were created by individual pairs of black holes or neutron stars that were 10 to 100 times as massive as our sun.
  • In contrast, the researchers involved in this work were looking for a collective hum at much lower frequencies — one-billionth of one hertz, far below the audible range — emanating from everywhere all at once.
  • If the signal does arise from orbiting pairs of supermassive black holes, studying the gravitational-wave background will shed light on the evolutionary history of these systems and the galaxies surrounding them. But the gravitational-wave background could also be coming from something else, like hypothetical cracks in space-time known as cosmic strings.
  • Or it could be a relic of the Big Bang, akin to the cosmic microwave background, which led to fundamental discoveries about the structure of the universe to within 400,000 years of its beginning. The gravitational-wave background would be an even better primordial probe, Dr. Mingarelli said, because it would have been emitted almost instantaneously.
  • To detect the gravitational-wave background, researchers analyzed the lighthouse-like nature of pulsars. These objects act like cosmic clocks, emitting beams of radio waves that can be periodically measured on Earth.
  • Einstein’s theory of general relativity predicts that as gravitational waves sweep past pulsars, they should expand and shrink the distance between these objects and Earth, changing the time it takes for the radio signals to arrive at observers. And if the gravitational-wave background is indeed everywhere, pulsars across the universe should be affected in a correlated way.
  • The findings carry a confidence level in the range of 3.5- to 4-sigma, just shy of the 5-sigma standard generally expected by physicists to claim a smoking-gun discovery. That means the odds of seeing a result like this randomly are about 1 in 1,000 years, Dr. Mingarelli said. “That’s good enough for me, but other people want once in a million years,” she said. “We’ll get there eventually.”
  • f the ripples originated with the Big Bang, they might instead provide insight into the expansion of the cosmos or the nature of dark matter — the invisible glue scientists think holds the universe together — and perhaps even reveal new particles or forces that once existed.
  • a few more years may be needed to confirm the source of the gravitational-wave background. Researchers have already begun using their data to piece together maps of the universe and to look for intense, nearby regions of gravitational-wave signals indicative of an individual supermassive black hole binary.
Javier E

Whistleblower: Twitter misled investors, FTC and underplayed spam issues - Washington Post - 0 views

  • Twitter executives deceived federal regulators and the company’s own board of directors about “extreme, egregious deficiencies” in its defenses against hackers, as well as its meager efforts to fight spam, according to an explosive whistleblower complaint from its former security chief.
  • The complaint from former head of security Peiter Zatko, a widely admired hacker known as “Mudge,” depicts Twitter as a chaotic and rudderless company beset by infighting, unable to properly protect its 238 million daily users including government agencies, heads of state and other influential public figures.
  • Among the most serious accusations in the complaint, a copy of which was obtained by The Washington Post, is that Twitter violated the terms of an 11-year-old settlement with the Federal Trade Commission by falsely claiming that it had a solid security plan. Zatko’s complaint alleges he had warned colleagues that half the company’s servers were running out-of-date and vulnerable software and that executives withheld dire facts about the number of breaches and lack of protection for user data, instead presenting directors with rosy charts measuring unimportant changes.
  • ...56 more annotations...
  • “Security and privacy have long been top companywide priorities at Twitter,” said Twitter spokeswoman Rebecca Hahn. She said that Zatko’s allegations appeared to be “riddled with inaccuracies” and that Zatko “now appears to be opportunistically seeking to inflict harm on Twitter, its customers, and its shareholders.” Hahn said that Twitter fired Zatko after 15 months “for poor performance and leadership.” Attorneys for Zatko confirmed he was fired but denied it was for performance or leadership.
  • the whistleblower document alleges the company prioritized user growth over reducing spam, though unwanted content made the user experience worse. Executives stood to win individual bonuses of as much as $10 million tied to increases in daily users, the complaint asserts, and nothing explicitly for cutting spam.
  • Chief executive Parag Agrawal was “lying” when he tweeted in May that the company was “strongly incentivized to detect and remove as much spam as we possibly can,” the complaint alleges.
  • Zatko described his decision to go public as an extension of his previous work exposing flaws in specific pieces of software and broader systemic failings in cybersecurity. He was hired at Twitter by former CEO Jack Dorsey in late 2020 after a major hack of the company’s systems.
  • “I felt ethically bound. This is not a light step to take,” said Zatko, who was fired by Agrawal in January. He declined to discuss what happened at Twitter, except to stand by the formal complaint. Under SEC whistleblower rules, he is entitled to legal protection against retaliation, as well as potential monetary rewards.
  • A person familiar with Zatko’s tenure said the company investigated Zatko’s security claims during his time there and concluded they were sensationalistic and without merit. Four people familiar with Twitter’s efforts to fight spam said the company deploys extensive manual and automated tools to both measure the extent of spam across the service and reduce it.
  • In 1998, Zatko had testified to Congress that the internet was so fragile that he and others could take it down with a half-hour of concentrated effort. He later served as the head of cyber grants at the Defense Advanced Research Projects Agency, the Pentagon innovation unit that had backed the internet’s invention.
  • Overall, Zatko wrote in a February analysis for the company attached as an exhibit to the SEC complaint, “Twitter is grossly negligent in several areas of information security. If these problems are not corrected, regulators, media and users of the platform will be shocked when they inevitably learn about Twitter’s severe lack of security basics.”
  • Zatko’s complaint says strong security should have been much more important to Twitter, which holds vast amounts of sensitive personal data about users. Twitter has the email addresses and phone numbers of many public figures, as well as dissidents who communicate over the service at great personal risk.
  • This month, an ex-Twitter employee was convicted of using his position at the company to spy on Saudi dissidents and government critics, passing their information to a close aide of Crown Prince Mohammed bin Salman in exchange for cash and gifts.
  • Zatko’s complaint says he believed the Indian government had forced Twitter to put one of its agents on the payroll, with access to user data at a time of intense protests in the country. The complaint said supporting information for that claim has gone to the National Security Division of the Justice Department and the Senate Select Committee on Intelligence. Another person familiar with the matter agreed that the employee was probably an agent.
  • “Take a tech platform that collects massive amounts of user data, combine it with what appears to be an incredibly weak security infrastructure and infuse it with foreign state actors with an agenda, and you’ve got a recipe for disaster,” Charles E. Grassley (R-Iowa), the top Republican on the Senate Judiciary Committee,
  • Many government leaders and other trusted voices use Twitter to spread important messages quickly, so a hijacked account could drive panic or violence. In 2013, a captured Associated Press handle falsely tweeted about explosions at the White House, sending the Dow Jones industrial average briefly plunging more than 140 points.
  • After a teenager managed to hijack the verified accounts of Obama, then-candidate Joe Biden, Musk and others in 2020, Twitter’s chief executive at the time, Jack Dorsey, asked Zatko to join him, saying that he could help the world by fixing Twitter’s security and improving the public conversation, Zatko asserts in the complaint.
  • The complaint — filed last month with the Securities and Exchange Commission and the Department of Justice, as well as the FTC — says thousands of employees still had wide-ranging and poorly tracked internal access to core company software, a situation that for years had led to embarrassing hacks, including the commandeering of accounts held by such high-profile users as Elon Musk and former presidents Barack Obama and Donald Trump.
  • But at Twitter Zatko encountered problems more widespread than he realized and leadership that didn’t act on his concerns, according to the complaint.
  • Twitter’s difficulties with weak security stretches back more than a decade before Zatko’s arrival at the company in November 2020. In a pair of 2009 incidents, hackers gained administrative control of the social network, allowing them to reset passwords and access user data. In the first, beginning around January of that year, hackers sent tweets from the accounts of high-profile users, including Fox News and Obama.
  • Several months later, a hacker was able to guess an employee’s administrative password after gaining access to similar passwords in their personal email account. That hacker was able to reset at least one user’s password and obtain private information about any Twitter user.
  • Twitter continued to suffer high-profile hacks and security violations, including in 2017, when a contract worker briefly took over Trump’s account, and in the 2020 hack, in which a Florida teen tricked Twitter employees and won access to verified accounts. Twitter then said it put additional safeguards in place.
  • This year, the Justice Department accused Twitter of asking users for their phone numbers in the name of increased security, then using the numbers for marketing. Twitter agreed to pay a $150 million fine for allegedly breaking the 2011 order, which barred the company from making misrepresentations about the security of personal data.
  • After Zatko joined the company, he found it had made little progress since the 2011 settlement, the complaint says. The complaint alleges that he was able to reduce the backlog of safety cases, including harassment and threats, from 1 million to 200,000, add staff and push to measure results.
  • But Zatko saw major gaps in what the company was doing to satisfy its obligations to the FTC, according to the complaint. In Zatko’s interpretation, according to the complaint, the 2011 order required Twitter to implement a Software Development Life Cycle program, a standard process for making sure new code is free of dangerous bugs. The complaint alleges that other employees had been telling the board and the FTC that they were making progress in rolling out that program to Twitter’s systems. But Zatko alleges that he discovered that it had been sent to only a tenth of the company’s projects, and even then treated as optional.
  • “If all of that is true, I don’t think there’s any doubt that there are order violations,” Vladeck, who is now a Georgetown Law professor, said in an interview. “It is possible that the kinds of problems that Twitter faced eleven years ago are still running through the company.”
  • “Agrawal’s Tweets and Twitter’s previous blog posts misleadingly imply that Twitter employs proactive, sophisticated systems to measure and block spam bots,” the complaint says. “The reality: mostly outdated, unmonitored, simple scripts plus overworked, inefficient, understaffed, and reactive human teams.”
  • One current and one former employee recalled that incident, when failures at two Twitter data centers drove concerns that the service could have collapsed for an extended period. “I wondered if the company would exist in a few days,” one of them said.
  • The current and former employees also agreed with the complaint’s assertion that past reports to various privacy regulators were “misleading at best.”
  • For example, they said the company implied that it had destroyed all data on users who asked, but the material had spread so widely inside Twitter’s networks, it was impossible to know for sure
  • As the head of security, Zatko says he also was in charge of a division that investigated users’ complaints about accounts, which meant that he oversaw the removal of some bots, according to the complaint. Spam bots — computer programs that tweet automatically — have long vexed Twitter. Unlike its social media counterparts, Twitter allows users to program bots to be used on its service: For example, the Twitter account @big_ben_clock is programmed to tweet “Bong Bong Bong” every hour in time with Big Ben in London. Twitter also allows people to create accounts without using their real identities, making it harder for the company to distinguish between authentic, duplicate and automated accounts.
  • In the complaint, Zatko alleges he could not get a straight answer when he sought what he viewed as an important data point: the prevalence of spam and bots across all of Twitter, not just among monetizable users.
  • Zatko cites a “sensitive source” who said Twitter was afraid to determine that number because it “would harm the image and valuation of the company.” He says the company’s tools for detecting spam are far less robust than implied in various statements.
  • The complaint also alleges that Zatko warned the board early in his tenure that overlapping outages in the company’s data centers could leave it unable to correctly restart its servers. That could have left the service down for months, or even have caused all of its data to be lost. That came close to happening in 2021, when an “impending catastrophic” crisis threatened the platform’s survival before engineers were able to save the day, the complaint says, without providing further details.
  • The four people familiar with Twitter’s spam and bot efforts said the engineering and integrity teams run software that samples thousands of tweets per day, and 100 accounts are sampled manually.
  • Some employees charged with executing the fight agreed that they had been short of staff. One said top executives showed “apathy” toward the issue.
  • Zatko’s complaint likewise depicts leadership dysfunction, starting with the CEO. Dorsey was largely absent during the pandemic, which made it hard for Zatko to get rulings on who should be in charge of what in areas of overlap and easier for rival executives to avoid collaborating, three current and former employees said.
  • For example, Zatko would encounter disinformation as part of his mandate to handle complaints, according to the complaint. To that end, he commissioned an outside report that found one of the disinformation teams had unfilled positions, yawning language deficiencies, and a lack of technical tools or the engineers to craft them. The authors said Twitter had no effective means of dealing with consistent spreaders of falsehoods.
  • Dorsey made little effort to integrate Zatko at the company, according to the three employees as well as two others familiar with the process who spoke on the condition of anonymity to describe sensitive dynamics. In 12 months, Zatko could manage only six one-on-one calls, all less than 30 minutes, with his direct boss Dorsey, who also served as CEO of payments company Square, now known as Block, according to the complaint. Zatko allegedly did almost all of the talking, and Dorsey said perhaps 50 words in the entire year to him. “A couple dozen text messages” rounded out their electronic communication, the complaint alleges.
  • Faced with such inertia, Zatko asserts that he was unable to solve some of the most serious issues, according to the complaint.
  • Some 30 percent of company laptops blocked automatic software updates carrying security fixes, and thousands of laptops had complete copies of Twitter’s source code, making them a rich target for hackers, it alleges.
  • A successful hacker takeover of one of those machines would have been able to sabotage the product with relative ease, because the engineers pushed out changes without being forced to test them first in a simulated environment, current and former employees said.
  • “It’s near-incredible that for something of that scale there would not be a development test environment separate from production and there would not be a more controlled source-code management process,” said Tony Sager, former chief operating officer at the cyberdefense wing of the National Security Agency, the Information Assurance divisio
  • Sager is currently senior vice president at the nonprofit Center for Internet Security, where he leads a consensus effort to establish best security practices.
  • The complaint says that about half of Twitter’s roughly 7,000 full-time employees had wide access to the company’s internal software and that access was not closely monitored, giving them the ability to tap into sensitive data and alter how the service worked. Three current and former employees agreed that these were issues.
  • “A best practice is that you should only be authorized to see and access what you need to do your job, and nothing else,” said former U.S. chief information security officer Gregory Touhill. “If half the company has access to and can make configuration changes to the production environment, that exposes the company and its customers to significant risk.”
  • The complaint says Dorsey never encouraged anyone to mislead the board about the shortcomings, but that others deliberately left out bad news.
  • When Dorsey left in November 2021, a difficult situation worsened under Agrawal, who had been responsible for security decisions as chief technology officer before Zatko’s hiring, the complaint says.
  • An unnamed executive had prepared a presentation for the new CEO’s first full board meeting, according to the complaint. Zatko’s complaint calls the presentation deeply misleading.
  • The presentation showed that 92 percent of employee computers had security software installed — without mentioning that those installations determined that a third of the machines were insecure, according to the complaint.
  • Another graphic implied a downward trend in the number of people with overly broad access, based on the small subset of people who had access to the highest administrative powers, known internally as “God mode.” That number was in the hundreds. But the number of people with broad access to core systems, which Zatko had called out as a big problem after joining, had actually grown slightly and remained in the thousands.
  • The presentation included only a subset of serious intrusions or other security incidents, from a total Zatko estimated as one per week, and it said that the uncontrolled internal access to core systems was responsible for just 7 percent of incidents, when Zatko calculated the real proportion as 60 percent.
  • Zatko stopped the material from being presented at the Dec. 9, 2021 meeting, the complaint said. But over his continued objections, Agrawal let it go to the board’s smaller Risk Committee a week later.
  • Agrawal didn’t respond to requests for comment. In an email to employees after publication of this article, obtained by The Post, he said that privacy and security continues to be a top priority for the company, and he added that the narrative is “riddled with inconsistences” and “presented without important context.”
  • On Jan. 4, Zatko reported internally that the Risk Committee meeting might have been fraudulent, which triggered an Audit Committee investigation.
  • Agarwal fired him two weeks later. But Zatko complied with the company’s request to spell out his concerns in writing, even without access to his work email and documents, according to the complaint.
  • Since Zatko’s departure, Twitter has plunged further into chaos with Musk’s takeover, which the two parties agreed to in May. The stock price has fallen, many employees have quit, and Agrawal has dismissed executives and frozen big projects.
  • Zatko said he hoped that by bringing new scrutiny and accountability, he could improve the company from the outside.
  • “I still believe that this is a tremendous platform, and there is huge value and huge risk, and I hope that looking back at this, the world will be a better place, in part because of this.”
Javier E

Pro-China YouTube Network Used A.I. to Malign U.S., Report Finds - The New York Times - 0 views

  • The 10-minute post was one of more than 4,500 videos in an unusually large network of YouTube channels spreading pro-China and anti-U.S. narratives, according to a report this week from the Australian Strategic Policy Institute
  • ome of the videos used artificially generated avatars or voice-overs, making the campaign the first influence operation known to the institute to pair A.I. voices with video essays.
  • The campaign’s goal, according to the report, was clear: to influence global opinion in favor of China and against the United States.
  • ...17 more annotations...
  • The videos promoted narratives that Chinese technology was superior to America’s, that the United States was doomed to economic collapse, and that China and Russia were responsible geopolitical players. Some of the clips fawned over Chinese companies like Huawei and denigrated American companies like Apple.
  • Content from at least 30 channels in the network drew nearly 120 million views and 730,000 subscribers since last year, along with occasional ads from Western companies
  • Disinformation — such as the false claim that some Southeast Asian nations had adopted the Chinese yuan as their own currency — was common. The videos were often able to quickly react to current events
  • he coordinated campaign might be “one of the most successful influence operations related to China ever witnessed on social media.”
  • YouTube said in a statement that its teams work around the clock to protect its community, adding that “we have invested heavily in robust systems to proactively detect coordinated influence operations.” The company said it welcomed research efforts and that it had shut down several of the channels mentioned in the report for violating the platform’s policies.
  • Efforts to push pro-China messaging have proliferated in recent years, but have featured largely low-quality content that attracted limited engagement or failed to sustain meaningful audiences
  • “This campaign actually leverages artificial intelligence, which gives it the ability to create persuasive threat content at scale at a very limited cost compared to previous campaigns we’ve seen,”
  • Historically, its influence operations have focused on defending the Communist Party government and its policies on issues like the persecution of Uyghurs or the fate of Taiwan
  • China began targeting the United States more directly amid the mass pro-democracy protests in Hong Kong in 2019 and continuing with the Covid-19 pandemic, echoing longstanding Russian efforts to discredit American leadership and influence at home and aboard.
  • Over the summer, researchers at Microsoft and other companies unearthed evidence of inauthentic accounts that China employed to falsely accuse the United States of using energy weapons to ignite the deadly wildfires in Hawaii in August.
  • Meta announced last month that it removed 4,789 Facebook accounts from China that were impersonating Americans to debate political issues, warning that the campaign appeared to be laying the groundwork for interference in the 2024 presidential elections.
  • It was the fifth network with ties to China that Meta had detected this year, the most of any other country.
  • The advent of artificial technology seems to have drawn special interest from Beijing. Ms. Keast of the Australian institute said that disinformation peddlers were increasingly using easily accessible video editing and A.I. programs to create large volumes of convincing content.
  • She said that the network of pro-China YouTube channels most likely fed English-language scripts into readily available online text-to-video software or other programs that require no technical expertise and can produce clips within minutes. Such programs often allow users to select A.I.-generated voice narration and customize the gender, accent and tone of voice.
  • In 39 of the videos, Ms. Keast found at least 10 artificially generated avatars advertised by a British A.I. company
  • she also discovered what may be the first example in an influence operation of a digital avatar created by a Chinese company — a woman in a red dress named Yanni.
  • The scale of the pro-China network is probably even larger, according to the report. Similar channels appeared to target Indonesian and French people. Three separate channels posted videos about chip production that used similar thumbnail images and the same title translated into English, French and Spanish.
lilyrashkind

Utah bans transgender athletes in girls sports : NPR - 0 views

  • SALT LAKE CITY — Utah lawmakers voted Friday to override GOP Gov. Spencer Cox's veto of legislation banning transgender youth athletes from playing on girls teams — a move that comes amid a nationwide culture war over transgender issues. Before the veto, the ban received support from a majority of Utah lawmakers, but fell short of the two-thirds needed to override it. Its sponsors on Friday successfully flipped 10 Republicans in the House and five in the Senate who had previously voted against the proposal.
  • Salt Lake City is set to host the NBA All-Star game in February 2023. League spokesman Mike Bass has said the league is "working closely" with the Jazz on the matter.
  • I cannot support this bill. I cannot support the veto override and if it costs me my seat so be it. I will do the right thing, as I always do," said Republican Sen. Daniel Thatcher. With the override of Cox's veto, Utah becomes the 12th state to enact some sort of ban on transgender kids in school sports. The state's law takes effect July 1.
  • ...24 more annotations...
  • Leaders in the deeply conservative Utah say they need the law to protect women's sports. As cultural shifts raise LGBTQ visibility, the lawmakers argue that, without their intervention, more transgender athletes with apparent physical advantages could eventually dominate the field and change the nature of women's sports.
  • he team is also partially owned by NBA all-star Dwyane Wade, who has a transgender daughter.
  • The looming threat of a lawsuit worries school districts and the Utah High School Athletic Association, which has said it lacks the funds to defend the policy in court. Later Friday, lawmakers are expected to change the bill so state money would cover legal fees.
  • The group Visit Salt Lake, which hosts conferences, shows and events, said the override could cost the state $50 million in lost revenue. The Utah-based DNA-testing genealogy giant Ancestry.com also urged the Legislature to find another way. The American Principles Project is confident that states with bans won't face boycotts like North Carolina did after limiting public restrooms transgender people could use. It focused on legislation in populous, economic juggernaut states like Texas and Florida that would be harder to boycott, Schilling said.
  • Friday's deliberations came after more than a year of debate and negotiation between social conservatives and LGBTQ advocates. Republican sponsor Rep. Kera Birkeland worked with Cox and civil rights activists at Equality Utah before introducing legislation that would require transgender student-athletes to go before a government-appointed commission.
  • The proposal, although framed as a compromise, failed to gain traction on either side. LGBTQ advocates took issue with Republican politicians appointing commission members and evaluation criteria that included body measurements such as hip-to-knee ratio.
  • But the ban won support from a vocal conservative base that has particular sway in Utah's state primary season. Even with primaries looming, however, some Republicans stood with Cox to reject the ban.
  • Ready for more bad infectious diseases news? There's an outbreak of bird flu making its way into U.S. poultry flocks. If the virus continues to spread, it could affect poultry prices — already higher amid widespread inflation. The price of chicken breasts this week averaged $3.63 per pound at U.S. supermarkets — up from $3.01 a week earlier and $2.42 at this time last year, the Agriculture Department says.
  • The latest data from the USDA show 59 confirmed sites of avian flu across commercial and backyard flocks in 17 states since the start of the year. That figure includes chickens, turkey and other poultry. The USDA identified a case of avian flu in a wild bird in mid-January, the first detection of the virus in wild birds in the U.S. since 2016. Wild birds can spread the virus to commercial and backyard flocks. By Feb. 9, the virus had been identified in a commercial flock in Indiana.
  • The last major avian flu outbreak in the U.S. was from December 2014 to June 2015, when more than 50 million chickens and turkeys either died from highly pathogenic avian influenza (HPAI) or were destroyed to stop its spread.
  • Whether the 2022 avian flu will affect the price of eggs and poultry depends on how widespread it becomes, says Ron Kean, a poultry science expert at the University of Wisconsin-Madison Department of Animal and Dairy Sciences. "In 2015, we did see quite an increase in egg prices," Kean told Wisconsin Public Radio. "The chicken meat wasn't severely affected at that time. We did see quite a loss in turkeys, so turkey prices went up. So, we'll see. If a lot of farms contract this, then we could see some real increases in price."
  • For producers who suspect their flock may be affected by avian flu, the USDA has a guide to the warning signs, including a sudden increase in bird deaths, lack of energy and appetite, and a decrease in egg production. If a flock is found to be infected by bird flu, the USDA moves quickly — within 24 hours — to assist producers to destroy the flock and prevent the virus from spreading.
  • A new Virginia state law prohibiting mask mandates in public schools does not apply to 12 students with disabilities whose parents challenged the law, a federal judge has ruled. Last month, the parents of 12 students across Virginia asked the court to halt enforcement of the law, saying it violated their rights under the federal American with Disabilities Act. The law, signed by newly elected Republican Gov. Glenn Youngkin, went into effect March 1; it gives parents a say over whether their children should wear masks in school.
  • The group of parents have children whose health conditions range from cystic fibrosis to asthma that put them at heightened risk for COVID-19.
  • The American Civil Liberties Union, which was one of several legal organizations that filed on behalf of the plaintiffs, said the injunction served as a "blueprint."
  • In a statement, Virginia Attorney General Jason Miyares said the ruling affirms that "parents have the right to make choices for their children."
  • When Judge Katanji Brown Jackson entered the Senate chamber this week to face questions on her readiness to join the Supreme Court, she did so as the first Black woman in the nation's history to be nominated to that position. For many Black law students and professionals, including a group of 150 who traveled from across the country to watch the historic hearing, Jackson's rise to likely associate justice gives a message of profound hope for what they too might one day be able to accomplish.
  • Dudley was one of 100 law students selected nationwide to attend a series of events and watch parties for Jackson's nomination, hosted by the progressive organization, Demand Justice. The group also included 50 public defenders — a nod to Jackson's own background in that field. "I see a lot of myself in her. I see a lot of my friends in her, and I wanted to be there to support," Dudley said, calling Jackson "overly qualified to sit on the Supreme Court."
  • The cohort of legal professionals cheered on Jackson as she faced questions from Republicans about her past cases, particularly those relating to child sex abuse, and on what school of thought she would bring to determining the constitutionality of high-profile cases. Republicans had vowed to oppose President Joe Biden's nominees to the court, and when news of Justice Stephen Breyer's imminent retirement broke, the GOP quickly mobilized to attack potential nominees who might replace the longtime liberal justice on the bench.
  • Particularly, some sentencing decisions in child pornography cases drew GOP fire. But Jackson's measured responses throughout the three days of questioning solidified the support of many onlookers, who reveled in what it would mean to have a Black woman sit on the bench for the first time in the court's 233-year history. "The fact of the matter is that I'm the father of three black girls, right? And to be able to tell them that finally, someone who is Black — female nonetheless — is finally on the precipice of a mountain that has never been climbed before by any other Black woman, is huge," said Edrius Stagg, a third-year law student at Southern University Law Center in Baton Rouge.
  • Sen. Joe Manchin of West Virginia — whose break from Democrats on a number of politically fraught votes had worried some as to whether he would support Biden's nominee — announced on Friday he would vote in favor of Jackson's confirmation, all but assuring her path to join the bench.
  • For some, the optics of seeing Jackson — a Black woman — defend her credentials to a group of largely white, predominantly male detractors, was a familiar scene. It has played out, students said, in workplaces the world over and across the socioeconomic spectrum.
  • Booker called the attacks on Jackson's record "dangerous" and "disingenuous," noting the complexities of cases that had been boiled down to their basest points in order to damage Jackson's image.
  • "I'm not gonna let my joy be stolen," he continued. "Because I know, you and I, we appreciate something that we get that a lot of my colleagues don't." And while Jackson's opponents peppered her with politically polarizing questions, her supporters grew even more convinced that Jackson was qualified for the job. "To see her hold her composure and just answer the questions just to the best of her capabilities was just really great to see," said Jasmine McMillion, a third-year law student at Florida Agricultural and Mechanical University College of Law.
Javier E

How Elon Musk spoiled the dream of 'Full Self-Driving' - The Washington Post - 0 views

  • They said Musk’s erratic leadership style also played a role, forcing them to work at a breakneck pace to develop the technology and to push it out to the public before it was ready. Some said they are worried that, even today, the software is not safe to be used on public roads. Most spoke on the condition of anonymity for fear of retribution.
  • “The system was only progressing very slowly internally” but “the public wanted a product in their hands,” said John Bernal, a former Tesla test operator who worked in its Autopilot department. He was fired in February 2022 when the company alleged improper use of the technology after he had posted videos of Full Self-Driving in action
  • “Elon keeps tweeting, ‘Oh we’re almost there, we’re almost there,’” Bernal said. But “internally, we’re nowhere close, so now we have to work harder and harder and harder.” The team has also bled members in recent months, including senior executives.
  • ...17 more annotations...
  • “No one believed me that working for Elon was the way it was until they saw how he operated Twitter,” Bernal said, calling Twitter “just the tip of the iceberg on how he operates Tesla.”
  • In April 2019, at a showcase dubbed “Autonomy Investor Day,” Musk made perhaps his boldest prediction as Tesla’s chief executive. “By the middle of next year, we’ll have over a million Tesla cars on the road with full self-driving hardware,” Musk told a roomful of investors. The software updates automatically over the air, and Full Self-Driving would be so reliable, he said, the driver “could go to sleep.”
  • Investors were sold. The following year, Tesla’s stock price soared, making it the most valuable automaker and helping Musk become the world’s richest person
  • To deliver on his promise, Musk assembled a star team of engineers willing to work long hours and problem solve deep into the night. Musk would test the latest software on his own car, then he and other executives would compile “fix-it” requests for their engineers.
  • Those patchwork fixes gave the illusion of relentless progress but masked the lack of a coherent development strategy, former employees said. While competitors such as Alphabet-owned Waymo adopted strict testing protocols that limited where self-driving software could operate, Tesla eventually pushed Full Self-Driving out to 360,000 owners — who paid up to $15,000 to be eligible for the features — and let them activate it at their own discretion.
  • Tesla’s philosophy is simple: The more data (in this case driving) the artificial intelligence guiding the car is exposed to, the faster it learns. But that crude model also means there is a lighter safety net. Tesla has chosen to effectively allow the software to learn on its own, developing sensibilities akin to a brain via technology dubbed “neural nets” with fewer rules, the former employees said. While this has the potential to speed the process, it boils down to essentially a trial and error method of training.
  • Radar originally played a major role in the design of the Tesla vehicles and software, supplementing the cameras by offering a reality check of what was around, particularly if vision might be obscured. Tesla also used ultrasonic sensors, shorter-range devices that detect obstructions within inches of the car. (The company announced last year it was eliminating those as well.)
  • Even with radar, Teslas were less sophisticated than the lidar and radar-equipped cars of competitors.“One of the key advantages of lidar is that it will never fail to see a train or truck, even if it doesn’t know what it is,” said Brad Templeton, a longtime self-driving car developer and consultant who worked on Google’s self-driving car. “It knows there is an object in front and the vehicle can stop without knowing more than that.”
  • Toward the end of 2020, Autopilot employees turned on their computers to find in-house workplace monitoring software installed, former employees said. It monitored keystrokes and mouse clicks, and kept track of their image labeling. If the mouse did not move for a period of time, a timer started — and employees could be reprimanded, up to being fired, for periods of inactivity, the former employees said.
  • Some of the people who spoke with The Post said that approach has introduced risks. “I just knew that putting that software out in the streets would not be safe,” said a former Tesla Autopilot engineer who spoke on the condition of anonymity for fear of retaliation. “You can’t predict what the car’s going to do.”
  • Some of the people who spoke with The Post attributed Tesla’s sudden uptick in “phantom braking” reports — where the cars aggressively slow down from high speeds — to the lack of radar. The Post analyzed data from the National Highway Traffic Safety Administration to show incidences surged last year, prompting a federal regulatory investigation.
  • The data showed reports of “phantom braking” rose to 107 complaints over three months, compared to only 34 in the preceding 22 months. After The Post highlighted the problem in a news report, NHTSA received about 250 complaints of the issue in a two-week period. The agency opened an investigation after, it said, it received 354 complaints of the problem spanning a period of nine months.
  • “It’s not the sole reason they’re having [trouble] but it’s big a part of it,” said Missy Cummings, a former senior safety adviser for NHTSA, who has criticized the company’s approach and recused herself on matters related to Tesla. “The radar helped detect objects in the forward field. [For] computer vision which is rife with errors, it serves as a sensor fusion way to check if there is a problem.”
  • Musk, as the chief tester, also asked for frequent bug fixes to the software, requiring engineers to go in and adjust code. “Nobody comes up with a good idea while being chased by a tiger,” a former senior executive recalled an engineer on the project telling him
  • Musk’s resistance to suggestions led to a culture of deference, former employees said. Tesla fired employees who pushed back on his approach. The company was also pushing out so many updates to its software that in late 2021, NHTSA publicly admonished Tesla for issuing fixes without a formal recall notice.
  • Tesla engineers have been burning out, quitting and looking for opportunities elsewhere. Andrej Karpathy, Tesla’s director of artificial intelligence, took a months-long sabbatical last year before leaving Tesla and taking a position this year at OpenAI, the company behind language-modeling software ChatGPT.
  • One of the former employees said that he left for Waymo. “They weren’t really wondering if their car’s going to run the stop sign,” the engineer said. “They’re just focusing on making the whole thing achievable in the long term, as opposed to hurrying it up.”
Javier E

Opinion | Forget the Multiverse. Embrace the Monoverse. - The New York Times - 0 views

  • Capgras syndrome. First defined a century ago, Capgras typically describes a person’s belief that someone close to him or her — a spouse or a child — has been replaced with a duplicate impostor
  • n this case, the patient believed that the whole world — everything she could observe of it — was a duplicate, a fake.I know a little bit how that feels.So do you, probably.
  • It’s easy to see the appeal of the multiverse, even as metaphor: the notion that we’re surrounded by a multitude of parallel selves, one of which might be living in a better timeline than the one we’re stuck in. It’s probably no coincidence that the idea has become so popular during an era of pandemic, climate change and political turmoil, when so many of us have felt helpless and trapped.
  • ...14 more annotations...
  • Like the Capgras patient, we risk becoming detached from the world we can see and touch. Regardless of whether we can prove that the multiverse exists, the idea of it can distract us from doing the work we need to do to make this world better
  • In 1957, a year after Lewis published his last Narnia book, a Princeton doctoral student, Hugh Everett III, published a dissertation bringing the ancient idea of the simultaneous existence of several worlds into the realm of modern science.
  • Everett was trying to solve a seeming paradox in quantum theory: Certain elementary particles (say, a photon) seemed to exist mathematically in many places at once but could be detected at only one location at a time.
  • Perhaps, Everett suggested, the act of detecting the particle splinters reality; perhaps the observer, and indeed the universe, splits into different possible timelines, one for each possible location of the particle. This would become known as the many-worlds interpretation
  • In my 30s, I knew I had to save myself from the enticements of alternate realities. So I envisioned a new cosmology of time
  • When I was 12, my mother met a man, and suddenly the family I’d imagined for myself became real. I had an older brother who loved puns and an older sister who wrote poems.But when I was 19, my stepfather died of melanoma; within a few years of recriminations and disputes, our blended family unblended itself.
  • For years, I couldn’t stop thinking about other, better timelines where it didn’t happen, where my stepfather was still alive and my family intact. It helped me understand what was missing, but it did not allow me to mourn what I’d lost.
  • And that’s the peril of the multiverse; I was becoming unreal to myself, nostalgic not for a time before the death happened but for a timeline in which it never happened at all.
  • In “Everything Everywhere,” Joy, the character played by Stephanie Hsu, has become aware of every possible timeline. She succumbs to nihilistic despair. If everything is happening, then nothing can matter.
  • We can joke or wonder whether we’re in the wrong timeline. But we can’t lose sight of the fact that this timeline is the only one we’ve got.
  • I felt a horrible sense of vertigo as I watched the life I’d been expecting to live tilting away from me. In this new timeline, my stepsiblings were no longer my siblings; they would become, instead, just people I knew for a while in high school.
  • Instead of a linear, branching timeline with multiple, parallel possibilities — so much more vivid than my real life — I tried to imagine time as a sphere always expanding away from me in every direction, like the light leaving a star.
  • In this model of time, instead of the past receding behind me, it expands outward to surround me, always there and always present. The future is at the very center of the sphere, curled up infinitely small inside of me, waiting to be realized. That way, I can believe that there is nothing to come that I do not already contain
  • if we have to believe in something invisible, let me believe in a version of the universe that keeps my focus where it belongs: on the things I can touch and change.
Javier E

Planck Satellite Shows Image of Infant Universe - NYTimes.com - 0 views

  • Recorded by the European Space Agency’s Planck satellite, the image is a heat map of the cosmos as it appeared only 370,000 years after the Big Bang, showing space speckled with faint spots from which galaxies would grow over billions of years.
  • is in stunning agreement with the general view of the universe that has emerged over the past 20 years, of a cosmos dominated by mysterious dark energy that seems to be pushing space apart and the almost-as-mysterious dark matter that is pulling galaxies together. It also shows a universe that seems to have endured an explosive burp known as inflation, which was the dynamite in the Big Bang.
  • “The extraordinary quality of Planck’s portrait of the infant universe allows us to peel back its layers to the very foundations, revealing that our blueprint of the cosmos is far from complete.”
  • ...10 more annotations...
  • Analyzing the relative sizes and frequencies of spots and ripples over the years has allowed astronomers to describe the birth of the universe to a precision that would make the philosophers weep. The new data have allowed astronomers to tweak their model a bit. It now seems the universe is 13.8 billion years old, instead of 13.7 billion, and consists by mass of 4.9 percent ordinary matter like atoms, 27 percent dark matter and 68 percent dark energy.
  • “Our ultimate goal would be to construct a new model that predicts the anomalies and links them together. But these are early days; so far, we don’t know whether this is possible and what type of new physics might be needed. And that’s exciting.”
  • The microwaves detected by the Planck date from 370,000 years after the Big Bang, which is as far back as optical or radio telescopes will ever be able to see, cosmologists say. But the patterns within them date from less than a trillionth of a second after the Big Bang, when the universe is said to have undergone a violent burst of expansion known as inflation that set cosmic history on the course it has followed ever since. Those patterns are Planck’s prize.
  • Within the standard cosmological framework, however, the new satellite data underscored the existence of puzzling anomalies that may yet lead theorists back to the drawing board. The universe appears to be slightly lumpier, with bigger and more hot and cold spots in the northern half of the sky as seen from Earth than toward the south, for example. And there is a large, unexplained cool spot in the northern hemisphere.
  • The biggest surprise here, astronomers said, is that the universe is expanding slightly more slowly than previous measurements had indicated. The Hubble constant, which characterizes the expansion rate, is 67 kilometers per second per megaparsec — in the units astronomers use — according to Planck. Recent ground-based measurements combined with the WMAP data gave a value of 69, offering enough of a discrepancy to make cosmologists rerun their computer simulations of cosmic history.
  • a Planck team member from the University of California, Berkeley, said it represents a mismatch between measurements made of the beginning of time and those made more recently, and that it could mean that dark energy, which is speeding up the expansion of the universe, is more complicated than cosmologists thought. He termed the possibility “pretty radical,” adding, “That would be pretty exciting.”
  • The data also offered striking support for the notion of inflation, which has been the backbone of Big Bang theorizing for 30 years. Under the influence of a mysterious force field during the first trillionth of a fraction of a second, what would become the observable universe ballooned by 100 trillion trillion times in size from a subatomic pinprick to a grapefruit in less than a violent eye-blink, so the story first enunciated by Alan Guth of M.I.T. goes.
  • Submicroscopic quantum fluctuations in this force field are what would produce the hot spots in the cosmic microwaves, which in turn would grow into galaxies. According to Planck’s measurements, those fluctuations so far fit the predictions of the simplest model of inflation, invented by Andrei Linde of Stanford, to a T. Dr. Tegmark of M.I.T. said, “We’re homing in on the simplest model.”
  • Cosmologists still do not know what might have caused inflation, but the recent discovery of the Higgs boson has provided evidence that the kinds of fields that can provoke such behavior really exist.
  • another clue to the nature of inflation could come from the anomalies in the microwave data — the lopsided bumpiness, for example — that tend to happen on the largest scales in the universe. By the logic of quantum cosmology, they were the first patterns to be laid down on the emerging cosmos; that is to say, when inflation was just starting.
grayton downing

Detecting Shift, U.S. Makes Case to China on North Korea - NYTimes.com - 0 views

  • shift in decades of Chinese support for North Korea, is pressuring China’s new president, Xi Jinping, to crack down on the regime in Pyongyang
  • China, the North’s only strong ally, has long feared the United States would capitalize on the fall of the North Korean leadership by expanding American military influence on the Korean Peninsula.
  • Even if China does cooperate, it is unclear how far North Korea might bend; North Korea ignored China’s entreaties not to conduct the nuclear test in February
Javier E

Guns don't kill dictatorships, people do | FP Passport - 0 views

  • I was curious about whether there's any evidence in the modern world for the old notion that a well-armed populace is the best defense against tyranny. Do countries with high gun-ownership rights tend to be more democratic? Or more likely to overthrow dictatorships?
  • from a look at the Small Arms Survey's international rankings from 2007, it's hard to detect a pattern.
  • The top 10 gun-owning countries in the world (after the United States) include both democracies like Switzerland and Finland, as well as authoritarian countries like Yemen and Saudi Arabia.
  • ...4 more annotations...
  • With 34.2 guns per 100 people, Iraq is ranked eighth on the survey. More to the point, the country already had a well-established gun culture and a high rate of gun ownership before the overthrow of Saddam Hussein. We can't know for sure if a well-armed population could have stopped Hitler's genocide, but it certainly didn't stop Saddam's.
  • Given the advanced deadly weaponry available to governments these days -- as opposed to the late 18th century -- most tyrants aren't all that threatened by citizens with conventional weapons. Like the Iraqis, Libyans were fairly well armed under Muammar al-Qaddafi -- 15.5 guns per 100 people as of 2007 -- but it still took an assist from NATO air power to finally bring him down.  
  • On the other extreme, the country ranked last on the survey -- with only 0.1 guns per 100 people -- is Tunisia, which as you'll recall was still able to overthrow a longtime dictator in 2011. With only 3.5 guns per 100 people, the Egyptian population that overthrew Hosni Mubarak was hardly well armed either. On the other hand, Bahrain, where a popular revolution failed to unseat the country's monarchy, has 24.8 guns per 100 people, putting it in the top 20 worldwide. A relatively high rate of 10.7 guns per 100 people in Venezuela hasn't stopped the deterioration of democracy under Hugo Chávez.
  • it's hard to see a trend either way
julia rhodes

North Korea's Lesson - Nukes for Sale - NYTimes.com - 0 views

  • HE most dangerous message North Korea sent Tuesday with its third nuclear weapon test is: nukes are for sale.
  • Testing a uranium-based bomb would announce to the world — including potential buyers — that North Korea is now operating a new, undiscovered production line for weapons-usable material.
  • North Korea’s latest provocation should also remind us of the limits of Western policies, led by the United States, that focus on “isolating” the hermit kingdom.
  • ...6 more annotations...
  • Hence the grim conclusion that North Korea now has a new cash crop — one that is easier to market than plutonium. Highly enriched uranium is harder to detect and therefore easier to export
  • American experts therefore believe that Pyongyang must have another still-undiscovered parallel plant that has been operating for several years. That plant by now could have produced several bombs’ worth of highly enriched uranium.
  • American policy makers’ attention has been consumed by Iran’s attempt to build its first nuclear weapon. During those years, American officials believe, North Korea has acquired enough plutonium to make an arsenal of 6 to 10 nuclear bombs,
  • history shows that the North Koreans will “sell anything they have to anybody who has the cash to buy it.” In intelligence circles, North Korea is known as “Missiles ‘R’ Us,” having sold and delivered missiles to Iran, Syria and Pakistan, among others.
  • With what consequences for North Korea? Pyongyang got paid; Syria got bombed; and the United States was soon back at the negotiating table in the six-party talks.
  • Given America’s failure to hold Kim Jong-un’s father, Kim Jong-il, accountable when he sold Syria’s president, Bashar al-Assad, the technology from which to make a bomb, could the younger Mr. Kim imagine that he could get away with selling a nuclear weapon or bomb-making material?
alexdeltufo

Israel's Netanyahu criticises military official over Nazi claim - BBC News - 0 views

  • Maj-Gen Yair Golan said on the eve of Thursday's annual Holocaust Day that he detected trends in Israeli society suggestive of "nauseating processes" that occurred in 1930s Nazi Germany.
  • Defence Minister Moshe Yaalon said he had "total confidence" in Gen Golan.
  • "There is, after all, nothing easier and simpler than hating the foreigner... arousing fears and terrifying."
  • ...5 more annotations...
  • But Mr Netanyahu said Gen Golan's remarks were "utterly mistaken and unacceptable to me".
  • Correspondents say right-wing members of Mr Netanyahu's coalition have called for Gen Golan's resignation, accusing him of dishonouring the dead.
  • The remarks come at a time of heightened tension between Israelis and Palestinians.
  • There has been debate and controversy over Israelis' response to the attacks.
  • There has been some public sympathy for the soldier but Mr Yaalon backed the military establishment in prosecuting him.
Javier E

U.S. Reacting at Analog Pace to a Rising Digital Risk, Hacking Report Shows - The New Y... - 0 views

  • the United States government is still responding at an analog pace to a low-grade, though escalating, digital conflict.
  • “in July 2015, Russian intelligence gained access to Democratic National Committee networks” and stayed there for 11 months, roaming freely and copying the contents of emails that it ultimately released in the midst of the election. Classified briefings circulating in Washington indicate that British intelligence had alerted the United States to the intrusion by fall 2015.
  • The delays reveal fundamental problems with American cyberdefenses and deterrence that President-elect Donald J. Trump will begin to confront in two weeks
  • ...10 more annotations...
  • a failure of imagination about the motives and plans of a longtime adversary meant that government officials were not fully alert to the possibility that Mr. Putin might try tactics here that have worked so well for him in Ukraine, the Baltics and other parts of Europe.
  • while American intelligence officials — who were focused primarily on the Islamic State and other urgent threats like China’s action in the South China Sea and North Korea’s nuclear and missile threat — saw what was happening, they came late to its broader implications
  • It was telling that within an hour of the release of the report on Friday, the secretary of homeland security, Jeh Johnson, declared for the first time that America’s election system — the underpinning of its democracy — would be added to the list of “critical infrastructure.” This after years of cyberattacks on campaigns and government agencies.
  • to anyone who reads between the lines and knows a bit of the back story not included in the report, the long lag times between detection and reaction are stunning.
  • Almost immediately, a low-level special agent with the F.B.I. alerted the Democratic National Committee’s information technology contractor, which doubted the call and did nothing for months. The F.B.I. failed to escalate the issue, even though it was clear from the start that the attackers were almost certainly the same Russians who had mounted similar campaigns against the State Department, the White House and the Joint Chiefs of Staff.
  • It was not until Oct. 7, 2016, 15 months after the initial hacking attack, that the intelligence agencies first publicly blamed Russia. Even then, Mr. Obama made it clear that he did not want to escalate the situation before the election, for fear of getting into a tit-for-tat cyberwar in which Russia might try to alter the actual vote tallying. (It did not.)
  • “The biggest frustration to me is speed, speed, speed,” he told the Senate Armed Services Committee on Thursday, in response to a question from Senator Jack Reed of Rhode Island, the top Democrat on the panel, about the obstacles to seeing a threat from abroad and acting on it here in the United States.
  • It is clear that Mr. Putin saw a huge vulnerability in the American system that was ripe to be exploited.
  • The country’s highly partisan politics, with cable channels and websites devoted to pressing an agenda for the fully convinced and the half-convinced, made it more vulnerable to any disclosures that could capture a news cycle
  • Add to that the uniquely Russian combination of covert espionage and the disclosure of the emails it harvested, as well as the release of “kompromat” — compromising information about politicians and policy makers — and “fake news,” a tactic not above American officials at times.
Javier E

History News Network | What's Wrong with the Way We Have Been Defending the Humanities - 0 views

  • In truth, no one wants to get rid of history or philosophy or communications or English; it’s the college professors teaching those subjects who strike our interlocutors as wasteful and unnecessary
  • our opponents don’t view the humanities as ever-expanding sites of intellectual inquiry. Rather, they believe the humanities are already dead: essential bodies of knowledge, but essentially complete in their present form.
  • Our critics readily concede that knowledge of the humanities is an important part of citizenship; indeed, their devotion to history, literature, and philosophy often rivals our own. Yet they view our fields as museums of past knowledge for which we serve merely as curators. They imagine us in the classroom, like Harry Potter’s ghostly Professor Binns, monotonously reciting stale facts from yellowed, centuries-old notes.
  • ...7 more annotations...
  • Unlike the STEM fields, where the creation of new knowledge is evident for all to see, the humanities appear to them a book that has long since closed – and which consequently requires no special training or ability to master.
  • Our job, first and foremost, is to make sure that the intellectual landscape of the twenty-first century is as fresh and relevant as were those of the twentieth and the nineteenth. 
  • The idea that conservatives are monolithically anti-intellectual betrays a lack of understanding of conservative thinkers, who not only value new ideas, but who believe fervently that their own interpretations are superior to those on the left
  • We must demonstrate to the public that humanities scholars are idea generators and knowledge creators, detectives and imagineers – the modern equivalents of the great historical thinkers so many revere.  We conduct original research on important topics and create new, sophisticated analyses that enhance existing knowledge
  • The real divide isn’t between liberals and conservatives, but between those who view the humanities as dead and those who realize they are very much alive. Our role as advocates, then, is to argue for the humanities as living, breathing disciplines teeming with new ideas, and to tie the creation of those ideas to the perpetuation of our role in the academy.
  • If you want more Federalists and more Platos, we must argue – if you want more Shakespeares and more Angelous – you need us and our work.  If you disagree with our interpretations, come pit your ideas against ours in a rigorous scholarly setting; learn from us, and we'll learn from you. 
  • Our contributions can't be replaced by amateurs who lack the disciplinary training we've acquired, or by think tanks which lack the scholarly rigor we embrace, or by underpaid, overworked adjuncts who lack the time, security, and support we enjoy. 
redavistinnell

China to send nuclear-armed submarines into Pacific amid tensions with US | World news ... - 0 views

  • China to send nuclear-armed submarines into Pacific amid tensions with US
  • The Chinese military is poised to send submarines armed with nuclear missiles into the Pacific Ocean for the first time, arguing that new US weapons systems have so undermined Beijing’s existing deterrent force that it has been left with no alternative.
  • They point to plans unveiled in March to station the US Thaad anti-ballistic system in South Korea, and the development of hypersonic glide missiles potentially capable of hitting China less than an hour after launch, as huge threats to the effectiveness of its land-based deterrent force.
  • ...12 more annotations...
  • “Because China’s SSBNs [nuclear missile submarines] are in the South China Sea, the US navy will try to send spy ships in there and get close to the SSBNs. China’s navy hates that and will try to push them away,” Wu said.
  • Warheads and missiles would be put together and handed over to the navy, allowing a nuclear weapon to be launched much faster if such a decision was taken. The start of Chinese missile patrols could further destabilise the already tense strategic standoff with the US in the South China Sea.
  • China has been working on ballistic missile submarine technology for more than three decades, but actual deployment has been put off by technical failures, institutional rivalry and policy d
  • Behind the ominous warnings is growing concern in the People’s Liberation army that China’s relatively small nuclear arsenal (estimated at 260 warheads compared with 7,000 each for the US and Russia), made up mostly of land-based missiles, is increasingly vulnerable to a devastating first strike, by either nuclear or conventional weapon
  • The decision to deploy Thaad anti-ballistic interceptors in South Korea was taken after North Korea’s fourth nuclear test, and the stated mission of the truck-launched interceptors is to shield the south from missile attack.
  • China is developing a similar missile but officials in Beijing fear that the Chinese nuclear arsenal is so small it could be almost completely wiped out without notice, with the few missiles launched in reprisal being destroyed in mid-air by US missile defences.
  • There seems to have been some discussion of moving to a “launch on warning” policy, to fire Chinese weapons before incoming missiles land and destroy them. That appears to be a minority view, however
  • The core aim is to have a second strike capacity that is “survivable” and “penetrative”. Submarines, on patrol in the ocean depths, fulfil the first requirement, they say.
  • Partly to help penetrate US missile defences, China has in recent months also started putting multiple warheads on its largest missile, the DF-5, another development that has set alarm bells ringing in the Pentagon, where some analysts view it as the first step towards a massive nuclear armament drive aimed at obliterating the US arsenal.
  • Evidence for China’s more “relaxed” approach is the length of time it took to deploy multiple warheads, two decades after developing the necessary technology. China has similarly taken decades to deploy nuclear missile submarines.
  • The slow pace has not just been for practical reasons. China’s guiding principle has been to have a capacity for “minimum means of reprisal” while minimising the chance of accidental or unauthorised launch.
  • However, to follow the British Royal Navy model – in which each Trident submarine commander has a signed letter from the prime minister in his safe, to open in the event of a strike on London – would entail a huge leap in the alert status of the Chinese nuclear arsenal, and a similarly huge delegation of responsibility to one of the armed forces.
proudsa

Will the Constitution Protect Your Next Smartphone? - The Atlantic - 0 views

  • he preeminent cyber-prophet of the day
  • The next frontier—devices that can detect an authorized user based solely on the quirks of how they interact with it—is just around the bend.
  • Will new unlocking methods enjoy the same Fifth Amendment protections that prevent the government from forcing a person to give up their passwords?
  • ...6 more annotations...
  • Indeed, just a year later, a Virginia judge ruled that police could force a person to unlock his own iPhone with his fingerprint. And this February, a federal judge in Los Angeles signed a search warrant that compelled a 29-year-old woman to do the same.
  • “Unlocking devices through biometric systems generally won’t raise Fifth Amendment issues.”
  • “When you put your fingerprint on the phone, you’re actually communicating something,” Gidari said. “You’re saying, ‘Hi, it’s me. Please open up.’”
  • With that nuanced a system, it’s unclear how police could force a user to retrieve information from a phone, even with a legal court order in hand.
  • It’s possible that a more advanced system, however, would be able to pick up even a slight tremor of fear and lock up.
  • a strong, memorized password remains the only foolproof way to get away with invoking the Fifth and keep your phone locked.
Javier E

Researchers have found a 'striking' new side effect from eating fast food - The Washing... - 0 views

  • "We're not trying to create paranoia or anxiety, but I do think our findings are alarming," said one of the study's authors, Ami Zota, an assistant professor of environmental and occupational health at George Washington University. "It's not every day that you conduct a study where the results are this strong."
  • In order to gauge how fast food affects the presence of certain non-natural chemicals, the team analyzed data for nearly 9,000 people
  • researchers found is that those participants who said they had eaten fast food in the last 24 hours tended to have much higher levels of two separate phthalates — DEHP and DiNP. People who reported eating only a little fast food had DEHP levels that were 15.5 percent higher and DiNP levels that were 25 percent higher than those who said they had eaten none. For people who reported eating a sizable amount, the increase was 24 percent and 39 percent, respectively.
  • ...7 more annotations...
  • "There's a vast amount of scientific evidence suggesting certain phthalates can contribute to several adverse health effects,
  • A 2012 study found a strong association between the presence of DEHP and diabetes. A 2013 study found that exposure to the industrial chemical can increase the risk of various allergic diseases in children. And a 2016 study concluded that it can also negatively affect child behavior.
  • A study undertaken last year, for instance, found that exposure to the phthalate was associated with higher blood pressure.
  • The reason people who eat fast food seem to have much higher levels of potentially harmful industrial chemicals is unclear. But it's easy enough to guess: the sheer amount of processing that goes into food served at quick-service restaurants
  • The more machinery, plastic, conveyor belts, and various forms of processing equipment that food touches, the more likely the food is to contain higher levels of phthalates. And fast food tends to touch a good deal more of these things than, say, the food one purchases at a local farmers market
  • Considering the prevalence of packaged food — and widespread exposure to phthalates (they can be detected in more than 98 percent of the population, per the CDC) — however,  the takeaway isn't necessarily that fast food is toxic. Fast food, after all, isn't the only culprit here.
  • Anything that's gone through some form of processing or industrial packaging is vulnerable.
« First ‹ Previous 41 - 60 of 217 Next › Last »
Showing 20 items per page