The Secret Sentry: The Untold History of the National Security Agency

Peering from space via satellite, tapping phones and networks, monitoring cell phone frequencies around the globe, the NSA watches friends, enemies, and terror suspects alike. Some 60 percent of the president's daily intelligence briefing comes from this one agency. No one knows the NSA better than Matthew M. Aid, who has packed two decades of research in declassified archives in More »