FAQ: 5 things known and alleged about NSA surveillance
Recent news reports alleging broad surveillance efforts by the U.S. National Security Agency seem to have left more questions than answers. Whistleblower Edward Snowden has accused the NSA of collecting massive amounts of data from U.S. residents, but U.S. officials have largely denied his allegations.
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Story added 10. June 2013, content source with full text you can find at link above.