Technical Sgt. Robert Stefko, 119th Communications Flight and assigned to Task Force Yuma, works on radio communication systems at an entry identification team site near the U.S.-Mexico border June 5, 2007. Sergeant Stefco is working on Operation JUMP START as a communications specialist who manages radio and computer systems in the forward operating area along the Arizona-Mexico border. (USAF photo by Senior Master Sgt. David H. Lipp)