National Security Agency

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**FILE** President Obama turns to leave the stage Jan. 17, 2014, at the Justice Department in Washington after he spoke about National Security Agency surveillance. (Associated Press)

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This photo provided by The Guardian Newspaper in London shows Edward Snowden, who worked as a contract employee at the National Security Agency, on Sunday, June 9, 2013, in Hong Kong. USIS, the company that handled a background check on National Security Agency leaker Edward Snowden allegedly defrauded the government by submitting at least 665,000 investigations that had not been properly completed, and then tried to cover it up when the government suspected what was going on. (AP Photo/The Guardian)

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This photo provided by The Guardian Newspaper in London shows Edward Snowden, who worked as a contract employee at the National Security Agency, on Sunday, June 9, 2013, in Hong Kong. USIS, the company that handled a background check on National Security Agency leaker Edward Snowden allegedly defrauded the government by submitting at least 665,000 investigations that had not been properly completed, and then tried to cover it up when the government suspected what was going on. (AP Photo/The Guardian)

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President Barack Obama gestures as he speaks about National Security Agency (NSA) surveillance, Friday, Jan. 17, 2014, at the Justice Department in Washington. The president called for ending the government's control of phone data from millions of Americans. (AP Photo/Carolyn Kaster)

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In this image made from video released by WikiLeaks on Friday, Oct. 11, 2013, former National Security Agency systems analyst Edward Snowden speaks during a presentation ceremony for the Sam Adams Award in Moscow, Russia. Should Snowden ever return to the U.S., he would face criminal charges for leaking information about NSA surveillance programs. But legal experts say a trial could expose more classified information as his lawyers try to build a case in an open court that the operations he exposed were illegal. (AP Photo)

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** FILE ** In this Jan. 17, 2014, file photo, President Barack Obama waves to the audience after he spoke about National Security Agency (NSA) surveillance, at the Justice Department in Washington. (AP Photo/Charles Dharapak, File)

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President Barack Obama talks about National Security Agency (NSA)surveillance, Friday, Jan. 17, 2014, at the Justice Department in Washington.Seeking to calm a furor over U.S. surveillance, the president called for ending the government's control of phone data from -hundreds of millions of Americans and immediately ordered intelligence agencies to get a secretive court's permission before accessing the records. (AP Photo/Carolyn Kaster)