Ask the Expert
Author James Bamford answers viewer questions about the NSA, 9/11, and more.

The New Thought Police
George Orwell's secret police have nothing on two new NSA systems designed to read people's minds.

Investigating 9/11
Eleanor Hill, who led congressional hearings on the attacks, discusses pre-9/11 intelligence failures in this interview.

Decoding Speech
If you think computers can easily recognize and transcribe spoken language, think again.