Microsoft Worked Closely with NSA, Documents Show
New documents say that Microsoft collaborated with U.S. intelligence to allow users' communications to be intercepted.
New documents say that Microsoft collaborated with U.S. intelligence to allow users' communications to be intercepted.
U.S. surveillance efforts foiled over 50 potential terrorist events since 2001, says NSA chief Keith Alexander.
Press reveals U.S. government has been spying on citizens through phones, internet.