Threats

The Longest War: The Enduring Conflict between America and Al-Qaed (Peter Bergen)

The Twilight War: The Secret History of America’s Thirty-Year Conflict with Iran (David Crist)

Cyber War: The Next Threat to National Security and What to Do About It ( Richard A. Clarke)

The Looming Tower: Al-Qaeda and the Road to 9/11 (Wright)