Tuesday, July 8, 2014

Since September 11th, 2001, the United States government has dramatically increased the ability of its intelligence agencies to collect and investigate information on both foreign subjects and US citizens. Some of these surveillance programs, including a secret program called PRISM, capture the private data of citizens who are not suspected of any connection to terrorism or any wrongdoing.



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     In June, a private contractor working for Booz Allen Hamilton leaked classified presentation slides that detailed the existence and the operations of PRISM: a mechanism that allows the government to collect user data from companies like Microsoft, Google, Apple, Yahoo, and others. While much of the program — and the rest of the NSA’s surveillance efforts — are still shrouded in secrecy, more details are coming to light as the public, as well as its advocates and representatives, pressure the government to come clean about domestic spying.
     What the hell is PRISM? PRISM is a tool used by the US National Security Agency (NSA) to collect private electronic data belonging to users of major internet services like Gmail, Facebook, Outlook, and others. It’s the latest evolution of the US government’s post-9/11 electronic surveillance efforts, which began under President Bush with the Patriot Act, and expanded to include the Foreign Intelligence Surveillance Act (FISA) enacted in 2006 and 2007.
     There’s a lot we still don’t know about how PRISM works, but the basic idea is that it allows the NSA to request data on specific people from major technology companies like Google, Yahoo, Facebook, Microsoft, Apple, and others. The US government insists that it is only allowed to collect data when given permission by the secretive Foreign Intelligence Surveillance Court.
     Classified presentation slides detailing aspects of PRISM were leaked by a former NSA contractor. On June 6th, The Guardian and The Washington Post published reports based on the leaked slides, which state that the NSA has “direct access” to the servers of Google, Facebook, and others. In the days since the leak, the implicated companies have vehemently denied knowledge of and participation in PRISM, and have rejected allegations that the US government is able to directly tap into their users' data.
Both the companies and the government insist that data is only collected with court approval and for specific targets. As The Washington Post reported, PRISM is said to merely be a streamlined system — varying between companies — that allows them to expedite court-approved data collection requests. Because there are few technical details about how PRISM operates, and because of the fact that the FISA court operates in secret, critics are concerned about the extent of the program and whether it violates the constitutional rights of US citizens.
     As The Washington Post reported, The Protect America Act of 2007 led to the creation of a secret NSA program called US-984XN — also known as PRISM. The program is said to be a streamlined version of the same surveillance practices that the US was conducting in the years following 9/11, under President George W. Bush’s “Terrorist Surveillance Program.”
The Protect America Act allows the attorney general and the director of national intelligence to explain in a classified document how the US will collect intelligence on foreigners overseas each year, but does not require specific targets or places to be named. As the Post reports, once the plan is approved by a federal judge in a secret order, the NSA can require companies like Google and Facebook to send data to the government, as long as the requests meet the classified plan's criteria.
     Edward Snowden, a 29-year-old intelligence contractor formerly employed by the NSA, CIA, and Booz Allen Hamilton, confessed responsibility for leaking the PRISM documents. He revealed himself on June 9th, three days after reports on PRISM were published; in an interview with The Guardian, Snowden said, “I don’t want to live in a society that does these sort of things,” and claimed he was motivated by civic duty to leak classified information.
Snowden left the United States prior to leaking the documents in order to avoid capture, taking refuge in Hong Kong — where he stayed until June 23rd. With the assistance of WikiLeaks, Snowden fled Hong Kong for Moscow, and has requested asylum in Ecuador, Russia, and other countries. He is still residing in a Moscow airport, waiting to be granted asylum.
     While PRISM has been the most talked-about story to come out of Snowden’s leaks, the disclosures have shed light on a vast array of NSA surveillance programs. Broadly speaking, these can be split into two categories: “upstream” wiretaps, which pull data directly from undersea telecommunications cables, and efforts like PRISM, which acquire communications from US service providers. One of the slides in the leaked PRISM presentation instructs that analysts “should use both” of these sources.
     NSA programs collect two kinds of data: metadata and content. Metadata is the sensitive byproduct of communications, such as phone records that reveal the participants, times, and durations of calls; the communications collected by PRISM include the contents of emails, chats, VoIP calls, cloud-stored files, and more. US officials have tried to allay fears about the NSA’s indiscriminate metadata collection by pointing out that it doesn’t reveal the contents of conversations. But metadata can be just as revealing as content — internet metadata includes information such as email logs, geolocation data (IP addresses), and web search histories. Because of a decades-old law, metadata is also far less well-protected than content in the US.
     A leaked court order provided by Snowden showed that Verizon is handing over the calling records and telephony metadata of all its customers to the NSA on an “ongoing, daily basis.” Mass collection of internet metadata began under a Bush-era program called "Stellarwind," which was first revealed by NSA whistleblower William Binney. The program was continued for two years under the Obama administration, but has since been discontinued and replaced with a host of similar programs with names like “EvilOlive” and “ShellTrumpet.”

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