In this Thursday, June 6, 2013, file photo, a sign stands outside the National Security Administration (NSA) campus in Fort Meade, Md. The NSA tracks the locations of nearly 5 billion cellphones every... more 
In this Thursday, June 6, 2013, file photo, a sign stands outside the National Security Administration (NSA) campus in Fort Meade, Md. The NSA tracks the locations of nearly 5 billion cellphones every day overseas, including those belonging to Americans abroad, The Washington Post reported on Wednesday, Dec. 4, 2013. Such data means the NSA can track the movements of almost any cellphone around the world and map the relationships of the cellphone user. (Patrick Semansky/AP) less 
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Associated Press | Photo By Patrick Semansky, File
Wed, Dec 4, 2013 7:35 PM EST