Yemen

January 23, 2017

Fighting the Long War: The Evolution of al-Qa`ida in the Arabian Peninsula

Michael Horton

July 27, 2016

The Enduring Influence of Anwar al-Awlaki in the Age of the Islamic State

Scott Shane

May 19, 2016

The Evolving Challenges for Explosive Detection in the Aviation Sector and Beyond

Robert Liscouski, William McGann

January 19, 2016

Al-Qa`ida and the Islamic State Benefit as Yemen War Drags On

Gregory D. Johnsen

October 8, 2013

Letter from UBL to `Atiyatullah Al-Libi 4

List of Names of Al-Qa`ida Members

Somalian Passport of Halimo Farah Abdillah

Ziad Barre and Events in Somalia

August 24, 2010

Washington Post Cites CTC Sentinel

February 2, 2010

Dr. Scott Helfstein on Fox News

Scott Helfstein

January 14, 2010

ANALYSIS-Yemen crackdown may not stunt al Qaeda’s appeal

February 6, 2008

The Terrorists’ Paper Trail in Iraq

US News and World Report