FILE - In this June 6, 2013 file photo, a sign stands outside the National Security Agency (NSA) campus in Fort Meade, Md. The NSA considered abandoning its secret program to collect and store American calling records in the months before leaker Edward Snowden revealed the practice, current and former intelligence officials say, because some officials believed the costs outweighed its meager counter terrorism benefits. (AP Photo/Patrick Semansky, File)
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