Master Sgt. Matthew Bedwell, from the 380th Expeditionary Security Forces Squadron, gives a pre-briefing to quick reaction force members from the U.S. Army's 3rd Battalion, 4th Air Defense Artillery Regiment, during an active shooter exercise at the 380th Air Expeditionary Wing Aug. 24, 2011. (U.S. Air Force photo/Master Sgt. Chance Babin)