Security Forces Active Shooter Training
1st Special Operations Security Forces Squadron Airmen enter a training building in Okaloosa County, Fla., during active shooter training July 22, 2010.The training put law enforcement teams of various sizes against multiple unknown threats armed with M-9s, M-16s, and other weapons converted to fire simulated ammunition that marks targets with brightly colored dye. (DoD photo by U. S. Air Force Senior Airman Matthew Loken)