Ali H. Soufan is a Lebanese-American former FBI agent who was involved in a number of high-profile anti-terrorism cases both in the United States and around the world. A 2006 New Yorker article described Soufan as coming closer than anyone to preventing the September 11 attacks and implied that he would have succeeded had the CIA been willing to share information with him. He resigned from the FBI in 2005 after publicly chastising the CIA for not sharing intelligence with him which could have prevented the attacks.

Abd al-Rahim Hussein Muhammed Abdu al-Nashiri is a Saudi Arabian citizen alleged to be the mastermind of the bombing of USS Cole and other maritime attacks. He is alleged to have headed al-Qaeda operations in the Persian Gulf and the Gulf states prior to his capture in November 2002 by the CIA's Special Activities Division.