From cnet
Edward Snowden, the former contractor for the National Security Agency who leaked classified documents regarding the agency’ssurveillance programs, has very sensitive "blueprints" describing how the agency operates, a journalist close to the story told The Associated Press.
Snowden has "literally thousands of documents" that constitute "basically the instruction manual for how the NSA is built" that could aid in duplication or evasion of NSA surveillance tactics, The Guardian’s Glenn Greenwald told the news agency on Sunday.
"In order to take documents with him that proved that what he was saying was true he had to take ones that included very sensitive, detailed blueprints of how the NSA does what they do," Greenwald said, who noted that he had last communicated with Snowden about four hours before the interview. (...)