The Puzzle Palace: Inside the National Security Agency, America's Most Secret Intelligence Organization

Body of Secrets: Anatomy of the Ultra-Secret National Security Agency

The Shadow Factory: The NSA from 9/11 to the Eavesdropping on America

The Hut Six Story: Breaking the Enigma Codes

Body of Secrets: Anatomy of the Ultra-Secret National Security Agency

No Place to Hide: Edward Snowden, the NSA, and the U.S. Surveillance State

Code Warriors: NSA's Codebreakers and the Secret Intelligence War Against the Soviet Union

A Pretext for War: 9/11, Iraq, and the Abuse of America's Intelligence Agencies

The Shadow Factory: The Ultra-Secret NSA from 9/11 to the Eavesdropping on America

A Pretext for War: 9/11, Iraq, and the Abuse of America's Intelligence Agencies