Neutralizing the threat
U.S. Air Force Senior Airman Scott Bost, 35th Security Forces Squadron patrolman, instructs a bystander to seek safety during an active-shooter threat exercise at Misawa Air Base, Japan, Aug. 15, 2015. As part of the training exercise, security response personnel encountered role players which added to the realism of the unpredictable environment they may face during threats like this. (U.S. Air Force photo by Senior Airman Jose L. Hernandez-Domitilo/Released)