U.S. Air Force Airman 1st Class Michael Viola, 633rd Security Forces Squadron installation entry controller, fires an M-9 pistol at a target during emergency service team tryouts at Langley Air Force Base, Va., Jan. 20, 2015. Viola and other members of SFS ran a timed obstacle course in an effort to qualify to be a part of the specialized team. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)