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A huge volume of the Internet data GCHQ collects flows directly into a massive repository named Black Hole, which is at the core of the agency’s online spying operations, storing raw logs of intercepted material before it has been subject to analysis. Black Hole contains data collected by GCHQ as part of bulk “unselected” surveillance, meaning it is not focused on particular “selected” targets and instead includes troves of data indiscriminately swept up about ordinary people’s online activities. Between August 2007 and March 2009, GCHQ documents say that Black Hole was used to store more than 1.1 trillion “events” — a term the agency uses to refer to metadata records — with about 10 billion new entries added every day. As of March 2009, the largest slice of data Black Hole held — 41 percent — was about people’s Internet browsing histories. The rest included a combination of email and instant messenger records, details about search engine queries, information about social media activity, logs related to hacking operations, and data on people’s use of tools to browse the Internet anonymously.

Throughout this period, as smartphone sales started to boom, the frequency of people’s Internet use was steadily increasing. In tandem, British spies were working frantically to bolster their spying capabilities, with plans afoot to expand the size of Black Hole and other repositories to handle an avalanche of new data. By 2010, according to the documents, GCHQ was logging 30 billion metadata records per day. By 2012, collection had increased to 50 billion per day, and work was underway to double capacity to 100 billion. The agency was developing “unprecedented” techniques to perform what it called “population-scale” data mining, monitoring all communications across entire countries in an effort to detect patterns or behaviors deemed suspicious. It was creating what it said would be, by 2013, “the world’s biggest” surveillance engine “to run cyber operations and to access better, more valued data for customers to make a real world difference.”

A document from the GCHQ target analysis center (GTAC) shows the Black Hole repository’s structure.

The data is searched by GCHQ analysts in a hunt for behavior online that could be connected to terrorism or other criminal activity. But it has also served a broader and more controversial purpose — helping the agency hack into European companies’ computer networks. In the lead up to its secret mission targeting Netherlands-based Gemalto, the largest SIM card manufacturer in the world, GCHQ used MUTANT BROTH in an effort to identify the company’s employees so it could hack into their computers. The system helped the agency analyze intercepted Facebook cookies it believed were associated with Gemalto staff located at offices in France and Poland. GCHQ later successfully infiltrated Gemalto’s internal networks, stealing encryption keys produced by the company that protect the privacy of cell phone communications.

Similarly, MUTANT BROTH proved integral to GCHQ’s hack of Belgian telecommunications provider Belgacom. The agency entered IP addresses associated with Belgacom into MUTANT BROTH to uncover information about the company’s employees. Cookies associated with the IPs revealed the Google, Yahoo, and LinkedIn accounts of three Belgacom engineers, whose computers were then targeted by the agency and infected with malware. The hacking operation resulted in GCHQ gaining deep access into the most sensitive parts of Belgacom’s internal systems, granting British spies the ability to intercept communications passing through the company’s networks.

In March, a U.K. parliamentary committee published the findings of an 18-month review of GCHQ’s operations and called for an overhaul of the laws that regulate the spying. The committee raised concerns about the agency gathering what it described as “bulk personal datasets” being held about “a wide range of people.” However, it censored the section of the report describing what these “datasets” contained, despite acknowledging that they “may be highly intrusive.” The Snowden documents shine light on some of the core GCHQ bulk data-gathering programs that the committee was likely referring to — pulling back the veil of secrecy that has shielded some of the agency’s most controversial surveillance operations from public scrutiny. KARMA POLICE and MUTANT BROTH are among the key bulk collection systems. But they do not operate in isolation — and the scope of GCHQ’s spying extends far beyond them.

The agency operates a bewildering array of other eavesdropping systems, each serving its own specific purpose and designated a unique code name, such as: SOCIAL ANTHROPOID, which is used to analyze metadata on emails, instant messenger chats, social media connections and conversations, plus “telephony” metadata about phone calls, cell phone locations, text and multimedia messages; MEMORY HOLE, which logs queries entered into search engines and associates each search with an IP address; MARBLED GECKO, which sifts through details about searches people have entered into Google Maps and Google Earth; and INFINITE MONKEYS, which analyzes data about the usage of online bulletin boards and forums. GCHQ has other programs that it uses to analyze the content of intercepted communications, such as the full written body of emails and the audio of phone calls. One of the most important content collection capabilities is TEMPORA, which mines vast amounts of emails, instant messages, voice calls and other communications and makes them accessible through a Google-style search tool named XKEYSCORE.

As of September 2012, TEMPORA was collecting “more than 40 billion pieces of content a day” and it was being used to spy on people across Europe, the Middle East, and North Africa, according to a top-secret memo outlining the scope of the program. The existence of TEMPORA was first revealed by The Guardian in June 2013. To analyze all of the communications it intercepts and to build a profile of the individuals it is monitoring, GCHQ uses a variety of different tools that can pull together all of the relevant information and make it accessible through a single interface. SAMUEL PEPYS is one such tool, built by the British spies to analyze both the content and metadata of emails, browsing sessions, and instant messages as they are being intercepted in real time. One screenshot of SAMUEL PEPYS in action shows the agency using it to monitor an individual in Sweden who visited a page about GCHQ on the U.S.-based anti-secrecy website Cryptome.

Partly due to the U.K.’s geographic location — situated between the United States and the western edge of continental Europe — a large amount of the world’s Internet traffic passes through its territory across international data cables. In 2010, GCHQ noted that what amounted to “25 percent of all Internet traffic” was transiting the U.K. through some 1,600 different cables. The agency said that it could “survey the majority of the 1,600” and “select the most valuable to switch into our processing systems.”

According to Joss Wright, a research fellow at the University of Oxford’s Internet Institute, tapping into the cables allows GCHQ to monitor a large portion of foreign communications. But the cables also transport masses of wholly domestic British emails and online chats, because when anyone in the U.K. sends an email or visits a website, their computer will routinely send and receive data from servers that are located overseas. “I could send a message from my computer here [in England] to my wife’s computer in the next room and on its way it could go through the U.S., France, and other countries,” Wright says. “That’s just the way the Internet is designed.” In other words, Wright adds, that means “a lot” of British data and communications transit across international cables daily, and are liable to be swept into GCHQ’s databases.

A map from a classified GCHQ presentation about intercepting communications from undersea cables. GCHQ is authorized to conduct dragnet surveillance of the international data cables through so-called external warrants that are signed off by a government minister. The external warrants permit the agency to monitor communications in foreign countries as well as British citizens’ international calls and emails — for example, a call from Islamabad to London. They prohibit GCHQ from reading or listening to the content of “internal” U.K. to U.K. emails and phone calls, which are supposed to be filtered out from GCHQ’s systems if they are inadvertently intercepted unless additional authorization is granted to scrutinize them. However, the same rules do not apply to metadata. A little-known loophole in the law allows GCHQ to use external warrants to collect and analyze bulk metadata about the emails, phone calls, and Internet browsing activities of British people, citizens of closely allied countries, and others, regardless of whether the data is derived from domestic U.K. to U.K. communications and browsing sessions or otherwise. In March, the existence of this loophole was quietly acknowledged by the U.K. parliamentary committee’s surveillance review, which stated in a section of its report that “special protection and additional safeguards” did not apply to metadata swept up using external warrants and that domestic British metadata could therefore be lawfully “returned as a result of searches” conducted by GCHQ.

Perhaps unsurprisingly, GCHQ appears to have readily exploited this obscure legal technicality. Secret policy guidance papers issued to the agency’s analysts instruct them that they can sift through huge troves of indiscriminately collected metadata records to spy on anyone regardless of their nationality. The guidance makes clear that there is no exemption or extra privacy protection for British people or citizens from countries that are members of the Five Eyes, a surveillance alliance that the U.K. is part of alongside the U.S., Canada, Australia, and New Zealand. “If you are searching a purely Events only database such as MUTANT BROTH, the issue of location does not occur,” states one internal GCHQ policy document, which is marked with a “last modified” date of July 2012. The document adds that analysts are free to search the databases for British metadata “without further authorization” by inputing a U.K. “selector,” meaning a unique identifier such as a person’s email or IP address, username, or phone number. Authorization is “not needed for individuals in the U.K.,” another GCHQ document explains, because metadata has been judged “less intrusive than communications content.” All the spies are required to do to mine the metadata troves is write a short “justification” or “reason” for each search they conduct and then click a button on their computer screen.

Intelligence GCHQ collects on British persons of interest is shared with domestic security agency MI5, which usually takes the lead on spying operations within the U.K. MI5 conducts its own extensive domestic surveillance as part of a program called DIGINT (digital intelligence).

GCHQ’s documents suggest that it typically retains metadata for periods of between 30 days to six months. It stores the content of communications for a shorter period of time, varying between three to 30 days. The retention periods can be extended if deemed necessary for “cyber defense.” One secret policy paper dated from January 2010 lists the wide range of information the agency classes as metadata — including location data that could be used to track your movements, your email, instant messenger, and social networking “buddy lists,” logs showing who you have communicated with by phone or email, the passwords you use to access “communications services” (such as an email account), and information about websites you have viewed.

Records showing the full website addresses you have visited — for instance, www.gchq.gov.uk/what_we_do — are treated as content. But the first part of an address you have visited — for instance, www.gchq.gov.uk — is treated as metadata. In isolation, a single metadata record of a phone call, email, or website visit may not reveal much about a person’s private life, according to Ethan Zuckerman, director of Massachusetts Institute of Technology’s Center for Civic Media. But if accumulated and analyzed over a period of weeks or months, these details would be “extremely personal,” he told The Intercept, because they could reveal a person’s movements, habits, religious beliefs, political views, relationships, and even sexual preferences. For Zuckerman, who has studied the social and political ramifications of surveillance, the most concerning aspect of large-scale government data collection is that it can be “corrosive towards democracy” — leading to a chilling effect on freedom of expression and communication. “Once we know there’s a reasonable chance that we are being watched in one fashion or another it’s hard for that not to have a ‘panopticon effect,’” he said, “where we think and behave differently based on the assumption that people may be watching and paying attention to what we are doing.”

When compared to surveillance rules in place in the U.S., GCHQ notes in one document that the U.K. has “a light oversight regime.” The more lax British spying regulations are reflected in secret internal rules that highlight greater restrictions on how NSA databases can be accessed. The NSA’s troves can be searched for data on British citizens, one document states, but they cannot be mined for information about Americans or other citizens from countries in the Five Eyes alliance. No such constraints are placed on GCHQ’s own databases, which can be sifted for records on the phone calls, emails, and Internet usage of Brits, Americans, and citizens from any other country. The scope of GCHQ’s surveillance powers explain in part why Snowden told The Guardian in June 2013 that U.K. surveillance is “worse than the U.S.” In an interview with Der Spiegel in July 2013, Snowden added that British Internet cables were “radioactive” and joked: “Even the Queen’s selfies to the pool boy get logged.”

In recent years, the biggest barrier to GCHQ’s mass collection of data does not appear to have come in the form of legal or policy restrictions. Rather, it is the increased use of encryption technology that protects the privacy of communications that has posed the biggest potential hindrance to the agency’s activities. “The spread of encryption … threatens our ability to do effective target discovery/development,” says a top-secret report co-authored by an official from the British agency and an NSA employee in 2011. “Pertinent metadata events will be locked within the encrypted channels and difficult, if not impossible, to prise out,” the report says, adding that the agencies were working on a plan that would “(hopefully) allow our Internet Exploitation strategy to prevail.”

Overall, we desperately need to nurture and propagate a steadfast culture of outspoken whistleblowing. A central motto of the AIDS activist movement dating back to the 1980s – Silence = Death – remains urgently relevant in a vast array of realms. Whether the problems involve perpetual war, corporate malfeasance, climate change, institutionalized racism, patterns of sexual assault, toxic pollution or countless other ills, none can be alleviated without bringing grim realities into the light. “All governments lie,” Ellsberg says in a video statement released for the launch of ExposeFacts, “and they all like to work in the dark as far as the public is concerned, in terms of their own decision-making, their planning — and to be able to allege, falsely, unanimity in addressing their problems, as if no one who had knowledge of the full facts inside could disagree with the policy the president or the leader of the state is announcing.” Ellsberg adds: “A country that wants to be a democracy has to be able to penetrate that secrecy, with the help of conscientious individuals who understand in this country that their duty to the Constitution and to the civil liberties and to the welfare of this country definitely surmount their obligation to their bosses, to a given administration, or in some cases to their promise of secrecy.”

Right now, our potential for democracy owes a lot to people like NSA whistleblowers William Binney and Kirk Wiebe, and EPA whistleblower Marsha Coleman-Adebayo. When they spoke at the June 4 news conference in Washington that launched ExposeFacts, their brave clarity was inspiring. Antidotes to the poisons of cynicism and passive despair can emerge from organizing to help create a better world. The process requires applying a single standard to the real actions of institutions and individuals, no matter how big their budgets or grand their power. What cannot withstand the light of day should not be suffered in silence. If you see something, say something.

Of the 28 House members signing on to the three letters, Republicans received, on average, $59,812 from the industry over the two-year period compared to $13,640 for Democrats, according to the Maplight data. Another letter (PDF) sent to the FCC this week from four top members of the House, including Speaker John Boehner (R-OH), Majority Leader Eric Cantor (R-VA), Majority Whip Kevin McCarthy (R-CA), and Republican Conference Chair Cathy McMorris Rodgers (R-WA), argued in favor of cable companies: "We are writing to respectfully urge you to halt your consideration of any plan to impose antiquated regulation on the Internet, and to warn that implementation of such a plan will needlessly inhibit the creation of American private sector jobs, limit economic freedom and innovation, and threaten to derail one of our economy's most vibrant sectors," they wrote. Over the two-year period, Boehner received $75,450; Cantor got $80,800; McCarthy got $33,000; and McMorris Rodgers got $31,500.

The third letter (PDF) forwarded to the FCC this week was signed by 20 House members. "We respectfully urge you to consider the effect that regressing to a Title II approach might have on private companies' ability to attract capital and their continued incentives to invest and innovate, as well as the potentially negative impact on job creation that might result from any reduction in funding or investment," the letter said. Here are the 28 lawmakers who lobbied the FCC this week and their reported campaign contributions:

Local police agencies have been denying access to records about this surveillance equipment under state public records laws. Agencies in San Diego, Chicago and Oakland County, Michigan, for instance, declined to tell the AP what devices they purchased, how much they cost and with whom they shared information. San Diego police released a heavily censored purchasing document. Oakland officials said police-secrecy exemptions and attorney-client privilege keep their hands tied. It was unclear whether the Obama administration interfered in the AP requests. "It's troubling to think the FBI can just trump the state's open records law," said Ginger McCall, director of the open government project at the Electronic Privacy Information Center. McCall suspects the surveillance would not pass constitutional muster. "The vast amount of information it sweeps in is totally irrelevant to the investigation," she said.

A court case challenging the public release of information from the Tucson Police Department includes an affidavit from an FBI special agent, Bradley Morrison, who said the disclosure would "result in the FBI's inability to protect the public from terrorism and other criminal activity because through public disclosures, this technology has been rendered essentially useless for future investigations." Morrison said revealing any information about the technology would violate a federal homeland security law about information-sharing and arms-control laws — legal arguments that that outside lawyers and transparency experts said are specious and don't comport with court cases on the U.S. Freedom of Information Act. The FBI did not answer questions about its role in states' open records proceedings.

But a former Justice Department official said the federal government should be making this argument in federal court, not a state level where different public records laws apply. "The federal government appears to be attempting to assert a federal interest in the information being sought, but it's going about it the wrong way," said Dan Metcalfe, the former director of the Justice Department's office of information and privacy. Currently Metcalfe is the executive director of American University's law school Collaboration on Government Secrecy project. A criminal case in Tallahassee cites the same homeland security laws in Morrison's affidavit, court records show, and prosecutors told the court they consulted with the FBI to keep portions of a transcript sealed. That transcript, released earlier this month, revealed that Stingrays "force" cellphones to register their location and identifying information with the police device and enables officers to track calls whenever the phone is on.

One law enforcement official familiar with the Tucson lawsuit, who spoke on condition of anonymity because the official was not authorized to speak about internal discussions, said federal lawyers told Tucson police they couldn't hand over a PowerPoint presentation made by local officers about how to operate the Stingray device. Federal officials forwarded Morrison's affidavit for use in the Tucson police department's reply to the lawsuit, rather than requesting the case be moved to federal court. In Sarasota, Florida, the U.S. Marshals Service confiscated local records on the use of the surveillance equipment, removing the documents from the reach of Florida's expansive open-records law after the ACLU asked under Florida law to see the documents. The ACLU has asked a judge to intervene. The Marshals Service said it deputized the officer as a federal agent and therefore the records weren't accessible under Florida law.

That the New Zealand government engages in precisely the mass surveillance activities Key vehemently denied is now barely in dispute. Indeed, a former director of GCSB under Key, Sir Bruce Ferguson, while denying any abuse of New Zealander’s communications, now admits that the agency engages in mass surveillance.

Meanwhile, Russel Norman, the head of the country’s Green Party, said in response to these stories that New Zealand is “committing crimes” against its neighbors in the Pacific by subjecting them to mass surveillance, and insists that the Key government broke the law because that dragnet necessarily includes the communications of New Zealand citizens when they travel in the region.

So now that it’s proven that New Zealand does exactly that which Prime Minister Key vowed would cause him to resign if it were proven, is he preparing his resignation speech? No: that’s something a political official with a minimal amount of integrity would do. Instead — even as he now refuses to say what he has repeatedly said before: that GCSB does not engage in mass surveillance — he’s simply retracting his pledge as though it were a minor irritant, something to be casually tossed aside:

When asked late last week whether New Zealanders have a right to know what their government is doing in the realm of digital surveillance, the Prime Minister said: “as a general rule, no.” And he expressly refuses to say whether New Zealand is doing that which he swore repeatedly it was not doing, as this excellent interview from Radio New Zealand sets forth: Interviewer: “Nicky Hager’s revelations late last week . . . have stoked fears that New Zealanders’ communications are being indiscriminately caught in that net. . . . The Prime Minister, John Key, has in the past promised to resign if it were found to be mass surveillance of New Zealanders . . . Earlier, Mr. Key was unable to give me an assurance that mass collection of communications from New Zealanders in the Pacific was not taking place.” PM Key: “No, I can’t. I read the transcript [of former GCSB Director Bruce Ferguson’s interview] – I didn’t hear the interview – but I read the transcript, and you know, look, there’s a variety of interpretations – I’m not going to critique–”

Interviewer: “OK, I’m not asking for a critique. Let’s listen to what Bruce Ferguson did tell us on Friday:” Ferguson: “The whole method of surveillance these days, is sort of a mass collection situation – individualized: that is mission impossible.” Interviewer: “And he repeated that several times, using the analogy of a net which scoops up all the information. . . . I’m not asking for a critique with respect to him. Can you confirm whether he is right or wrong?” Key: “Uh, well I’m not going to go and critique the guy. And I’m not going to give a view of whether he’s right or wrong” . . . . Interviewer: “So is there mass collection of personal data of New Zealand citizens in the Pacific or not?” Key: “I’m just not going to comment on where we have particular targets, except to say that where we go and collect particular information, there is always a good reason for that.”

From “I will resign if it’s shown we engage in mass surveillance of New Zealanders” to “I won’t say if we’re doing it” and “I won’t quit either way despite my prior pledges.” Listen to the whole interview: both to see the type of adversarial questioning to which U.S. political leaders are so rarely subjected, but also to see just how obfuscating Key’s answers are. The history of reporting from the Snowden archive has been one of serial dishonesty from numerous governments: such as the way European officials at first pretended to be outraged victims of NSA only for it to be revealed that, in many ways, they are active collaborators in the very system they were denouncing. But, outside of the U.S. and U.K. itself, the Key government has easily been the most dishonest over the last 20 months: one of the most shocking stories I’ve seen during this time was how the Prime Minister simultaneously plotted in secret to exploit the 2013 proposed law to implement mass surveillance at exactly the same time that he persuaded the public to support it by explicitly insisting that it would not allow mass surveillance. But overtly reneging on a public pledge to resign is a new level of political scandal. Key was just re-elected for his third term, and like any political official who stays in power too long, he has the despot’s mentality that he’s beyond all ethical norms and constraints. But by the admission of his own former GCSB chief, he has now been caught red-handed doing exactly that which he swore to the public would cause him to resign if it were proven. If nothing else, the New Zealand media ought to treat that public deception from its highest political official with the level of seriousness it deserves.

While the decision extends in the immediate term only to historical cellphone location data, the Supreme Court’s reasoning opens the door to the protection of the many other kinds of data generated by popular technologies. Today’s decision provides a groundbreaking update to privacy rights that the digital age has rendered vulnerable to abuse by the government’s appetite for surveillance. It recognizes that “cell phones and the services they provide are ‘such a pervasive and insistent part of daily life’ that carrying one is indispensable to participation in modern society.” And it helps ensure that we don’t have to give up those rights if we want to participate in modern life. 

"One’s cell phone, unlike an automobile, can accompany its owner anywhere. Thus, the exposure of the cell site location information can convert what would otherwise be a private event into a public one," he wrote. "In that sense, cell site data is more like communications data than it is like GPS information. That is, it is private in nature rather than being public data that warrants privacy protection only when its collection creates a sufficient mosaic to expose that which would otherwise be private." Finally, the government argued that, because Davis made outgoing calls, he "voluntarily" gave up his location data. Sentelle rejected that, too, citing a prior decision by a Third Circuit Court. "The Third Circuit went on to observe that 'a cell phone customer has not ‘voluntarily’ shared his location information with a cellular provider in any meaningful way.' That circuit further noted that 'it is unlikely that cell phone customers are aware that their cell phone providers collect and store historical location information,'” Sentelle wrote.

"Therefore, as the Third Circuit concluded, 'when a cell phone user makes a call, the only information that is voluntarily and knowingly conveyed to the phone company is the number that is dialed, and there is no indication to the user that making that call will also locate the caller,'" he continued.