PITTSBURGH INTERNATIONAL AIRPORT AIR RESERVE STATION, Pa. – Staff Sgt. Judson Heckerman, 911th Security Forces response member, parks in front of a C-130 Hercules during a hijacking exercise Nov. 24 here. As part of the exercise, Heckerman was initially unaware of the hijacking until he noticed specific signals from the crew that the aircraft had been taken over . (U.S. Air Force photo by Jacob Morgan)