U.S. Air Force Senior Airman Dianna Schgeta, a 35th Security Forces Squadron unit scheduler, simulates being an active shooter during an active shooter exercise at Misawa Air Base, Sept. 18, 2018. Active shooter exercises are held to evaluate the 35th Fighter Wing's ability to correctly notify the base population of an active shooter in a timely manner and effectively report unit accountability. (U.S. Air Force photo by Tech. Sgt. Stephany Johnson)