It's impossible for him to do what he was saying he could do.'īut training materials for XKeyscore detail how analysts can use it and other systems to mine enormous agency databases by filling in a simple on-screen form giving only a broad justification for the search. Mike Rogers, the Republican chairman of the House intelligence committee, said of Snowden's assertion: 'He's lying. US officials vehemently denied this specific claim. 'I, sitting at my desk,' said Snowden, could 'wiretap anyone, from you or your accountant, to a federal judge or even the president, if I had a personal email'. The files shed light on one of Snowden's most controversial statements, made in his first video interview published by the Guardian on June 10. They come as senior intelligence officials testify to the Senate judiciary committee on Wednesday, releasing classified documents in response to the Guardian's earlier stories on bulk collection of phone records and Fisa surveillance court oversight. The latest revelations will add to the intense public and congressional debate around the extent of NSA surveillance programs.

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