Airmen from the New Jersey Air National Guard's 177th Security Forces Squadron and local law enforcement officers move toward the sound of gunfire during an active shooter exercise at Atlantic City Air National Guard Base, NJ on Oct. 24, 2014. The 177th SFS hosted the training event, which was the culmination of active shooter and tactical combat casualty care classes attended by security forces Airmen and local police officers. (U.S. Air National Guard photo by Tech. Sgt. Matt Hecht)