I don't think that Glenn Greenwald would stake his reputation on just a PowerPoint. He claims on Twitter that he has "highly detailed technical NSA materials on

I don't think that Glenn Greenwald would stake his reputation on just a PowerPoint. He claims on Twitter that he has "highly detailed technical NSA materials on how they eavesdrop". [1] Though I'm not sure if that is a reference to the telecom spying or Internet spying. [1] https://twitter.com/ggreenwald/status/343470800784982016 https://twitter.com/ggreenwald/status/343470800784982016