Tech. Sgt. Damien Seelbach, 436th Communications Squadron Cybersecurity noncommissioned officer in charge and unit marshal, places a Beretta M9 in the clearing barrel during the disarming process conducted in the 436th CS’s arming area, Oct. 24, 2019, on Dover Air Force Base, Del. The UM Program is designed as an active shooter deterrent program. (U.S. Air Force photo by Roland Balik)