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With major protests in the news again, we decided it's time to update our cell phone guide for protestors. A lot has changed since we last published this report in 2011, for better and for worse. On the one hand, we've learned more about the massive volume of law enforcement requests for cell phone—ranging from location information to actual content—and widespread use of dedicated cell phone surveillance technologies. On the other hand, strong Supreme Court opinions have eliminated any ambiguity about the unconstitutionality of warrantless searches of phones incident to arrest, and a growing national consensus says location data, too, is private. Protesters want to be able to communicate, to document the protests, and to share photos and video with the world. So they'll be carrying phones, and they'll face a complex set of considerations about the privacy of the data those phones hold. We hope this guide can help answer some questions about how to best protect that data, and what rights protesters have in the face of police demands.

In August 2013, as evidence emerged of the active participation by New Zealand in the “Five Eyes” mass surveillance program exposed by Edward Snowden, the country’s conservative Prime Minister, John Key, vehemently denied that his government engages in such spying. He went beyond mere denials, expressly vowing to resign if it were ever proven that his government engages in mass surveillance of New Zealanders. He issued that denial, and the accompanying resignation vow, in order to reassure the country over fears provoked by a new bill he advocated to increase the surveillance powers of that country’s spying agency, Government Communications Security Bureau (GCSB) — a bill that passed by one vote thanks to the Prime Minister’s guarantees that the new law would not permit mass surveillance.

Since then, a mountain of evidence has been presented that indisputably proves that New Zealand does exactly that which Prime Minister Key vehemently denied — exactly that which he said he would resign if it were proven was done. Last September, we reported on a secret program of mass surveillance at least partially implemented by the Key government that was designed to exploit the very law that Key was publicly insisting did not permit mass surveillance. At the time, Snowden, citing that report as well as his own personal knowledge of GCSB’s participation in the mass surveillance tool XKEYSCORE, wrote in an article for The Intercept: Let me be clear: any statement that mass surveillance is not performed in New Zealand, or that the internet communications are not comprehensively intercepted and monitored, or that this is not intentionally and actively abetted by the GCSB, is categorically false. . . . The prime minister’s claim to the public, that “there is no and there never has been any mass surveillance” is false. The GCSB, whose operations he is responsible for, is directly involved in the untargeted, bulk interception and algorithmic analysis of private communications sent via internet, satellite, radio, and phone networks.

A series of new reports last week by New Zealand journalist Nicky Hager, working with my Intercept colleague Ryan Gallagher, has added substantial proof demonstrating GCSB’s widespread use of mass surveillance. An article last week in The New Zealand Herald demonstrated that “New Zealand’s electronic surveillance agency, the GCSB, has dramatically expanded its spying operations during the years of John Key’s National Government and is automatically funnelling vast amounts of intelligence to the US National Security Agency.” Specifically, its “intelligence base at Waihopai has moved to ‘full-take collection,’ indiscriminately intercepting Asia-Pacific communications and providing them en masse to the NSA through the controversial NSA intelligence system XKeyscore, which is used to monitor emails and internet browsing habits.” Moreover, the documents “reveal that most of the targets are not security threats to New Zealand, as has been suggested by the Government,” but “instead, the GCSB directs its spying against a surprising array of New Zealand’s friends, trading partners and close Pacific neighbours.” A second report late last week published jointly by Hager and The Intercept detailed the role played by GCSB’s Waihopai base in aiding NSA’s mass surveillance activities in the Pacific (as Hager was working with The Intercept on these stories, his house was raided by New Zealand police for 10 hours, ostensibly to find Hager’s source for a story he published that was politically damaging to Key).

Makes email “scary” in order to disrupt NSA surveillance Install Visit the Install ScareMail page to setup ScareMail on your preferred browser. Introduction ScareMail is a web browser extension that makes email “scary” in order to disrupt NSA surveillance. Extending Google’s Gmail, the work adds to every new email’s signature an algorithmically generated narrative containing a collection of probable NSA search terms. This “story” acts as a trap for NSA programs like PRISM and XKeyscore, forcing them to look at nonsense. Each email’s story is unique in an attempt to avoid automated filtering by NSA search systems. Demonstration Video

Want to grab some ScareMail text without using the browser extension? Use the ScareMail Generator to get all the scary text you want.

Less than a week after the attacks in Paris — while the public and policymakers were still reeling, and the investigation had barely gotten off the ground — Cy Vance, Manhattan’s District Attorney, released a policy paper calling for legislation requiring companies to provide the government with backdoor access to their smartphones and other mobile devices. This is the first concrete proposal of this type since September 2014, when FBI Director James Comey reignited the “Crypto Wars” in response to Apple’s and Google’s decisions to use default encryption on their smartphones. Though Comey seized on Apple’s and Google’s decisions to encrypt their devices by default, his concerns are primarily related to end-to-end encryption, which protects communications that are in transit. Vance’s proposal, on the other hand, is only concerned with device encryption, which protects data stored on phones. It is still unclear whether encryption played any role in the Paris attacks, though we do know that the attackers were using unencrypted SMS text messages on the night of the attack, and that some of them were even known to intelligence agencies and had previously been under surveillance. But regardless of whether encryption was used at some point during the planning of the attacks, as I lay out below, prohibiting companies from selling encrypted devices would not prevent criminals or terrorists from being able to access unbreakable encryption. Vance’s primary complaint is that Apple’s and Google’s decisions to provide their customers with more secure devices through encryption interferes with criminal investigations. He claims encryption prevents law enforcement from accessing stored data like iMessages, photos and videos, Internet search histories, and third party app data. He makes several arguments to justify his proposal to build backdoors into encrypted smartphones, but none of them hold water.

Before addressing the major privacy, security, and implementation concerns that his proposal raises, it is worth noting that while an increase in use of fully encrypted devices could interfere with some law enforcement investigations, it will help prevent far more crimes — especially smartphone theft, and the consequent potential for identity theft. According to Consumer Reports, in 2014 there were more than two million victims of smartphone theft, and nearly two-thirds of all smartphone users either took no steps to secure their phones or their data or failed to implement passcode access for their phones. Default encryption could reduce instances of theft because perpetrators would no longer be able to break into the phone to steal the data.

Vance argues that creating a weakness in encryption to allow law enforcement to access data stored on devices does not raise serious concerns for security and privacy, since in order to exploit the vulnerability one would need access to the actual device. He considers this an acceptable risk, claiming it would not be the same as creating a widespread vulnerability in encryption protecting communications in transit (like emails), and that it would be cheap and easy for companies to implement. But Vance seems to be underestimating the risks involved with his plan. It is increasingly important that smartphones and other devices are protected by the strongest encryption possible. Our devices and the apps on them contain astonishing amounts of personal information, so much that an unprecedented level of harm could be caused if a smartphone or device with an exploitable vulnerability is stolen, not least in the forms of identity fraud and credit card theft. We bank on our phones, and have access to credit card payments with services like Apple Pay. Our contact lists are stored on our phones, including phone numbers, emails, social media accounts, and addresses. Passwords are often stored on people’s phones. And phones and apps are often full of personal details about their lives, from food diaries to logs of favorite places to personal photographs. Symantec conducted a study, where the company spread 50 “lost” phones in public to see what people who picked up the phones would do with them. The company found that 95 percent of those people tried to access the phone, and while nearly 90 percent tried to access private information stored on the phone or in other private accounts such as banking services and email, only 50 percent attempted contacting the owner.

The first (and thus far only) roll-back of post-9/11 surveillance authorities was implemented over the weekend: The National Security Agency shuttered its program for collecting and holding the metadata of Americans’ phone calls under Section 215 of the Patriot Act. While bulk collection under Section 215 has ended, the government can obtain access to this information under the procedures specified in the USA Freedom Act. Indeed, some experts have argued that the Agency likely has access to more metadata because its earlier dragnet didn’t cover cell phones or Internet calling. In addition, the metadata of calls made by an individual in the United States to someone overseas and vice versa can still be collected in bulk — this takes place abroad under Executive Order 12333. No doubt the NSA wishes that this was the end of the surveillance reform story and the Paris attacks initially gave them an opening. John Brennan, the Director of the CIA, implied that the attacks were somehow related to “hand wringing” about spying and Sen. Tom Cotton (R-Ark.) introduced a bill to delay the shut down of the 215 program. Opponents of encryption were quick to say: “I told you so.”

But the facts that have emerged thus far tell a different story. It appears that much of the planning took place IRL (that’s “in real life” for those of you who don’t have teenagers). The attackers, several of whom were on law enforcement’s radar, communicated openly over the Internet. If France ever has a 9/11 Commission-type inquiry, it could well conclude that the Paris attacks were a failure of the intelligence agencies rather than a failure of intelligence authorities. Despite the passage of the USA Freedom Act, US surveillance authorities have remained largely intact. Section 702 of the FISA Amendments Act — which is the basis of programs like PRISM and the NSA’s Upstream collection of information from Internet cables — sunsets in the summer of 2017. While it’s difficult to predict the political environment that far out, meaningful reform of Section 702 faces significant obstacles. Unlike the Section 215 program, which was clearly aimed at Americans, Section 702 is supposedly targeted at foreigners and only picks up information about Americans “incidentally.” The NSA has refused to provide an estimate of how many Americans’ information it collects under Section 702, despite repeated requests from lawmakers and most recently a large cohort of advocates. The Section 215 program was held illegal by two federal courts (here and here), but civil attempts to challenge Section 702 have run into standing barriers. Finally, while two review panels concluded that the Section 215 program provided little counterterrorism benefit (here and here), they found that the Section 702 program had been useful.

There is, nonetheless, some pressure to narrow the reach of Section 702. The recent decision by the European Court of Justice in the safe harbor case suggests that data flows between Europe and the US may be restricted unless the PRISM program is modified to protect the information of Europeans (see here, here, and here for discussion of the decision and reform options). Pressure from Internet companies whose business is suffering — estimates run to the tune of $35 to 180 billion — as a result of disclosures about NSA spying may also nudge lawmakers towards reform. One of the courts currently considering criminal cases which rely on evidence derived from Section 702 surveillance may hold the program unconstitutional either on the basis of the Fourth Amendment or Article III for the reasons set out in this Brennan Center report. A federal district court in Colorado recently rejected such a challenge, although as explained in Steve’s post, the decision did not seriously explore the issues. Further litigation in the European courts too could have an impact on the debate.

The recent publication of a leaked video demonstrating American security firm Raytheon’s social media mining tool RIOT (Rapid Information Overlay Technology) has rightly incensed individuals and online privacy groups. In a nutshell, RIOT – already shared with US government and industry as part of a joint research and development effort in 2010 – uses social media traces to profile people’s activities, map their contacts, and predict their future activities. Yet the most surprising thing isn’t how RIOT works, but that the information it mines is what we’ve each already shared publicly.

The European Parliament narrowly adopted a nonbinding but nonetheless forceful resolution on Thursday urging the 28 nations of the European Union to recognize Edward J. Snowden as a “whistle-blower and international human rights defender” and shield him from prosecution.On Twitter, Mr. Snowden, the former National Security Agency contractor who leaked millions of documents about electronic surveillance by the United States government, called the vote a “game-changer.” But the resolution has no legal force and limited practical effect for Mr. Snowden, who is living in Russia on a three-year residency permit.Whether to grant Mr. Snowden asylum remains a decision for the individual European governments, and none have done so thus far. Continue reading the main story Related Coverage Open Source: Now Following the N.S.A. on Twitter, @SnowdenSEPT. 29, 2015 Snowden Sees Some Victories, From a DistanceMAY 19, 2015 Still, the resolution was the strongest statement of support seen for Mr. Snowden from the European Parliament. At the same time, the close vote — 285 to 281 — suggested the extent to which some European lawmakers are wary of alienating the United States.

The resolution calls on European Union members to “drop any criminal charges against Edward Snowden, grant him protection and consequently prevent extradition or rendition by third parties.”In June 2013, shortly after Mr. Snowden’s leaks became public, the United States charged him with theft of government property and violations of the Espionage Act of 1917. By then, he had flown to Moscow, where he spent weeks in legal limbo before he was granted temporary asylum and, later, a residency permit.Four Latin American nations have offered him permanent asylum, but he does not believe he could travel from Russia to those countries without running the risk of arrest and extradition to the United States along the way.

The White House, which has used diplomatic efforts to discourage even symbolic resolutions of support for Mr. Snowden, immediately criticized the resolution.“Our position has not changed,” said Ned Price, a spokesman for the National Security Council in Washington.“Mr. Snowden is accused of leaking classified information and faces felony charges here in the United States. As such, he should be returned to the U.S. as soon as possible, where he will be accorded full due process.”Jan Philipp Albrecht, one of the lawmakers who sponsored the resolution in Europe, said it should increase pressure on national governments.

As if further proof were needed Orwell’s dystopia is now upon us, China has now gamified obedience to the State. Though that is every bit as creepily terrifying as it sounds, citizens may still choose whether or not they wish to opt-in — that is, until the program becomes compulsory in 2020. “Going under the innocuous name of ‘Sesame Credit,’ China has created a score for how good a citizen you are,” explains Extra Credits’ video about the program. “The owners of China’s largest social networks have partnered with the government to create something akin to the U.S. credit score — but, instead of measuring how regularly you pay your bills, it measures how obediently you follow the party line.”

In the works for years, China’s ‘social credit system’ aims to create a docile, compliant citizenry who are fiscally and morally responsible by employing a game-like format to create self-imposed, group social control. In other words, China gamified peer pressure to control its citizenry; and, though the scheme hasn’t been fully implemented yet, it’s already working — insidiously well.

The system is run by two companies, Alibaba and Tencent, which run all the social networks in China and therefore have access to a vast amount of data about people’s social ties and activities and what they say. In addition to measuring your ability to pay, as in the United States, the scores serve as a measure of political compliance. Among the things that will hurt a citizen’s score are posting political opinions without prior permission, or posting information that the regime does not like, such as about the Tiananmen Square massacre that the government carried out to hold on to power, or the Shanghai stock market collapse. It will hurt your score not only if you do these things, but if any of your friends do them.” And, in what appears likely the goal of the entire program, added, “Imagine the social pressure against disobedience or dissent that this will create.”

“The intent is world domination,” Berners-Lee says with a wry smile. The British-born scientist is known for his dry sense of humor. But in this case, he is not joking.This week, Berners-Lee will launch Inrupt, a startup that he has been building, in stealth mode, for the past nine months. Backed by Glasswing Ventures, its mission is to turbocharge a broader movement afoot, among developers around the world, to decentralize the web and take back power from the forces that have profited from centralizing it. In other words, it’s game on for Facebook, Google, Amazon. For years now, Berners-Lee and other internet activists have been dreaming of a digital utopia where individuals control their own data and the internet remains free and open. But for Berners-Lee, the time for dreaming is over.

In a post published this weekend, Berners-Lee explains that he is taking a sabbatical from MIT to work full time on Inrupt. The company will be the first major commercial venture built off of Solid, a decentralized web platform he and others at MIT have spent years building.

f all goes as planned, Inrupt will be to Solid what Netscape once was for many first-time users of the web: an easy way in. And like with Netscape, Berners-Lee hopes Inrupt will be just the first of many companies to emerge from Solid.

The five-week court hearing in what is a complex case delving into detail on US surveillance operations took place in February. The court issued its ruling today. The 153-page ruling starts by noting “this is an unusual case”, before going into a detailed discussion of the arguments and concluding that the DPC’s concerns about the validity of SCCs should be referred to the European Court of Justice for a preliminary ruling. Schrems is also the man responsible for bringing, in 2013, a legal challenge that ultimately struck down Safe Harbor — the legal mechanism that had oiled the pipe for EU-US personal data flows for fifteen years before the ECJ ruled it to be invalid in October 2015. Schrems’ argument had centered on U.S. government mass surveillance programs, as disclosed via the Snowden leaks, being incompatible with fundamental European privacy rights. After the ECJ struck down Safe Harbor he then sought to apply the same arguments against Facebook’s use of SCCs — returning to Ireland to make the complaint as that’s where the company has its European HQ. It’s worth noting that the European Commission has since replaced Safe Harbor with a new (and it claims more robust) data transfer mechanism, called the EU-US Privacy Shield — which is now, as Safe Harbor was, used by thousands of businesses. Although that too is facing legal challenges as critics continue to argue there is a core problem of incompatibility between two distinct legal regimes where EU privacy rights collide with US mass surveillance.

In a written statement on the ruling Schrems added: “I welcome the judgement by the Irish High Court. It is important that a neutral Court outside of the US has summarized the facts on US surveillance in a judgement, after diving through more than 45,000 pages of documents in a five week hearing.

Making a video statement outside court in Dublin today, Schrems said the Irish court had dismissed Facebook’s argument that the US government does not undertake any surveillance.

Where power is not overtly totalitarian, wealthy elites have bought up all media, first in print, then radio, then television, and used it to advance narratives that are favorable to their interests. Not until humanity gained widespread access to the internet has our species had the ability to freely and easily share ideas and information on a large scale without regulation by the iron-fisted grip of power. This newfound ability arguably had a direct impact on the election for the most powerful elected office in the most powerful government in the world in 2016, as a leak publishing outlet combined with alternative and social media enabled ordinary Americans to tell one another their own stories about what they thought was going on in their country.This newly democratized narrative-generating power of the masses gave those in power an immense fright, and they’ve been working to restore the old order of power controlling information ever since. And the editor-in-chief of the aforementioned leak publishing outlet, WikiLeaks, has been repeatedly trying to warn us about this coming development.

In a statement that was recently read during the “Organising Resistance to Internet Censorship” webinar, sponsored by the World Socialist Web Site, Assange warned of how “digital super states” like Facebook and Google have been working to “re-establish discourse control”, giving authority over how ideas and information are shared back to those in power.Assange went on to say that the manipulative attempts of world power structures to regain control of discourse in the information age has been “operating at a scale, speed, and increasingly at a subtlety, that appears likely to eclipse human counter-measures.”What this means is that using increasingly more advanced forms of artificial intelligence, power structures are becoming more and more capable of controlling the ideas and information that people are able to access and share with one another, hide information which goes against the interests of those power structures and elevate narratives which support those interests, all of course while maintaining the illusion of freedom and lively debate.

To be clear, this is already happening. Due to a recent shift in Google’s “evaluation methods”, traffic to left-leaning and anti-establishment websites has plummeted, with sites like WikiLeaks, Alternet, Counterpunch, Global Research, Consortium News, Truthout, and WSWS losing up to 70 percent of the views they were getting prior to the changes. Powerful billionaire oligarchs Pierre Omidyar and George Soros are openly financing the development of “an automated fact-checking system” (AI) to hide “fake news” from the public.

A growing number of leading left-wing websites have confirmed that their search traffic from Google has plunged in recent months, adding to evidence that Google, under the cover of a fraudulent campaign against fake news, is implementing a program of systematic and widespread censorship. Truthout, a not-for-profit news website that focuses on political, social, and ecological developments from a left progressive standpoint, had its readership plunge by 35 percent since April. The Real News , a nonprofit video news and documentary service, has had its search traffic fall by 37 percent. Another site, Common Dreams , last week told the WSWS that its search traffic had fallen by up to 50 percent. As extreme as these sudden drops in search traffic are, they do not equal the nearly 70 percent drop in traffic from Google seen by the WSWS. “This is political censorship of the worst sort; it’s just an excuse to suppress political viewpoints,” said Robert Epstein, a former editor in chief of Psychology Today and noted expert on Google. Epstein said that at this point, the question was whether the WSWS had been flagged specifically by human evaluators employed by the search giant, or whether those evaluators had influenced the Google Search engine to demote left-wing sites. “What you don’t know is whether this was the human evaluators who are demoting you, or whether it was the new algorithm they are training,” Epstein said.

Richard Stallman, the world-renowned technology pioneer and a leader of the free software movement, said he had read the WSWS’s coverage on Google’s censorship of left-wing sites. He warned about the immense control exercised by Google over the Internet, saying, “For people’s main way of finding articles about a topic to be run by a giant corporation creates an obvious potential for abuse.” According to data from the search optimization tool SEMRush, search traffic to Mr. Stallman’s personal website, Stallman.org, fell by 24 percent, while traffic to gnu.org, operated by the Free Software Foundation, fell 19 percent. Eric Maas, a search engine optimization consultant working in the San Francisco Bay area, said his team has surveyed a wide range of alternative news sites affected by changes in Google’s algorithms since April.  “While the update may be targeting specific site functions, there is evidence that this update is promoting only large mainstream news organizations. What I find problematic with this is that it appears that some sites have been targeted and others have not.” The massive drop in search traffic to the WSWS and other left-wing sites followed the implementation of changes in Google’s search evaluation protocols. In a statement issued on April 25, Ben Gomes, the company’s vice president for engineering, stated that Google’s update of its search engine would block access to “offensive” sites, while working to surface more “authoritative content.” In a set of guidelines issued to Google evaluators in March, the company instructed its search evaluators to flag pages returning “conspiracy theories” or “upsetting” content unless “the query clearly indicates the user is seeking an alternative viewpoint.”

Since taking office, President Donald Trump has wasted no time in proposing rollbacks to Obama-era federal regulations. So, it should come as no surprise that the Federal Communications Commission (FCC) voted last month to propose changes to current regulations on Internet service providers. Spearheaded by Ajit Pai — the Trump-appointed FCC chairman and former lawyer for Verizon — the 2-1 vote is the first step in dismantling the Open Internet Order. The lone FCC Democrat, Mignon Clyburn, was overruled by Pai and fellow commissioner Michael O’Reilly. The 2015 order classified broadband internet as a utility under Title II of the Communications Act of 1934. Opponents of the current state of net neutrality argue that the rules are archaic and place unnecessary — even harmful — restrictions on internet service providers (ISPs), leading to lack of innovation and investment. While it’s true that policies conceived in the 1930s could hardly anticipate the complexities of the modern Internet, a complete rollback of Title II protections would leave ISPs free to favor their own services and whichever company pays for upgraded service. Considering relaxed FEC rules on media ownership and lack of antitrust enforcement, some could argue that a rollback of net neutrality is even more toxic to innovation and affordable pricing. That is, fast lanes could be created for companies with deeper pockets, effectively giving them an advantage over companies and individuals who can’t pay extra. This approach effectively penalizes small businesses, nonprofits and innovative start-ups. Today’s Internet is so vast and so pervasive that it’s hard to grasp the impact that an abandonment of net neutrality would have on every aspect of our culture.

While the FCC’s proposed change will touch most Americans, net neutrality remains a mystifying concept to non-techies. To help our readers better understand the issue, we have compiled some videos that explain net neutrality and its importance. The FCC will be accepting comments from the public on their website until August 16, 2017.

For Facebook, journalism has been a pain in the neck from day one. Now, bogged down with the insoluble problems of fake news and bad PR, it’s clear that Facebook will gradually pull the plug on news. Publishers should stop whining and move on.Let’s admit that publishers have been screwed by Facebook. Not because Mark Zuckerberg is evil, but because he’s a pragmatist. His latest move should not come as a surprise. On Thursday, for the second time in six months, Facebook stated publicly that news (i.e., journalism) will appear further down in everyone’s newsfeed, in order to favor posts from friends, family and “groups.” Here is how Zuck defended the move:“The research shows that when we use social media to connect with people we care about, it can be good for our well-being. We can feel more connected and less lonely, and that correlates with long term measures of happiness and health. On the other hand, passively reading articles or watching videos — even if they’re entertaining or informative — may not be as good. Based on this, we’re making a major change to how we build Facebook. I’m changing the goal I give our product teams from focusing on helping you find relevant content to helping you have more meaningful social interactions”.Consider us notified. Facebook is done with journalism. It will happen, slowly, gradually, but the trend is here. In this context, the email sent yesterday by Campbell Brown, Facebook’s head of news partnerships, who states “news remains a top priority for us,” rings hollow.

These and other classified documents provided by former NSA contractor Edward Snowden reveal that the NSA has developed technology not just to record and transcribe private conversations but to automatically identify the speakers. Americans most regularly encounter this technology, known as speaker recognition, or speaker identification, when they wake up Amazon’s Alexa or call their bank. But a decade before voice commands like “Hello Siri” and “OK Google” became common household phrases, the NSA was using speaker recognition to monitor terrorists, politicians, drug lords, spies, and even agency employees. The technology works by analyzing the physical and behavioral features that make each person’s voice distinctive, such as the pitch, shape of the mouth, and length of the larynx. An algorithm then creates a dynamic computer model of the individual’s vocal characteristics. This is what’s popularly referred to as a “voiceprint.” The entire process — capturing a few spoken words, turning those words into a voiceprint, and comparing that representation to other “voiceprints” already stored in the database — can happen almost instantaneously. Although the NSA is known to rely on finger and face prints to identify targets, voiceprints, according to a 2008 agency document, are “where NSA reigns supreme.” It’s not difficult to see why. By intercepting and recording millions of overseas telephone conversations, video teleconferences, and internet calls — in addition to capturing, with or without warrants, the domestic conversations of Americans — the NSA has built an unrivaled collection of distinct voices. Documents from the Snowden archive reveal that analysts fed some of these recordings to speaker recognition algorithms that could connect individuals to their past utterances, even when they had used unknown phone numbers, secret code words, or multiple languages.

The classified documents, dating from 2004 to 2012, show the NSA refining increasingly sophisticated iterations of its speaker recognition technology. They confirm the uses of speaker recognition in counterterrorism operations and overseas drug busts. And they suggest that the agency planned to deploy the technology not just to retroactively identify spies like Pelton but to prevent whistleblowers like Snowden.