Is it possible the NSA did not know what files Snowden had access to? [View all]

[kentuck]

http://investigations.nbcnews.com/_news/2013/08/20/20108770-us-doesnt-know-what-snowden-took-sources-say?lite

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More than two months after documents leaked by former contractor Edward Snowden first began appearing in the news media, the National Security Agency still doesn’t know the full extent of what he took, according to intelligence community sources, and is “overwhelmed” trying to assess the damage.

Officials, including NSA director Keith Alexander, have assured the public that the government knows the scope of the damage, but two separate sources briefed on the matter told NBC News that the NSA has been unable to determine the full extent of the data he removed.

Sources said authorities believe the trove of unreleased materials includes details of data collection by U.S. allies, including the U.K., Canada, Australia and New Zealand. These English-speaking allies, known along with the U.S. as the "Five Eyes," are critical to U.S. intelligence efforts.

Snowden was working for Booz Allen Hamilton in Hawaii as a contractor for the NSA before he flew to Hong Kong in May 2013. Documents that he had leaked then became the basis of a series of articles by Guardian journalist Glenn Greenwald and Barton Gellman of the Washington Post about the extent of the NSA’s monitoring of electronic communications. Greenwald has told reporters that Snowden has leaked him and Laura Poitras, a documentary filmmaker, thousands of documents -- all of which have since been encrypted -- and that the encoded files have been shared with others