Mark Fallon is an author, international security consultant and career national security professional. He spent more than 30 years as a federal agent, counterintelligence officer and counterterrorism specialist. Positions included serving as the NCIS Deputy Assistant Director for Counterterrorism and appointment to the Senior Executive Service within the Department of Homeland Security. Mark has been involved in some of the most significant counterterrorism operations in U.S. history, including the investigation of Sheik Omar Abdel Rahman (“the Blind Sheik”), the terrorist attack on the USS Cole and after the attacks of 9/11, he was appointed as the Deputy Commander of a task force created specifically to investigate the al-Qaida terrorist network for trials before military commissions. Mark is the Chair of the International Association of Chiefs of Police IMPACT Section and past-Chair of the High Value Detainee Interrogation Group Research Committee. Mark is the author of Unjustifiable Means: The Inside Story of How the CIA, Pentagon and U.S. Government Conspired to Torture. He has been published in the Journal of Applied Cognitive Psychology, NY Daily News, Politico, Police Chief Magazine, Huffington Post and Newsweek.