The National Security Agency's Special Source Operations branch manages "partnerships" in which U.S. and foreign telecommunications companies allow the NSA to use their facilities to intercept phone calls, e-mails and other data. This briefing describes problems with overcollection of data from e-mail address books and buddy lists, as well as NSA efforts to filter out what it does not need.
ยป NSA collects millions of e-mail address books globally
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]]>GRAPHIC: Barton Gellman and Matt DeLong - The Washington Post.