Master Sgt. Shawn Cox (right to left), Tech. Sgt. Dennis Keller and Senior Airman Brad Hickey surround a suspect who has barricaded himself in June 9 during a counter-terrorism exercise at Eielson Air Force Base, Alaska. The security forces special emergency response team members train to stay current on the policies and procedures involving hostage retrieval, barricaded subjects and counter-terrorism. SERT is the Air Force security forces equivalent to civilian police forces special weapons and tactics, or SWAT, teams. (U.S Air Force photo/Tech. Sgt. Eric T. Sheler)