Active Shooter
Security Forces members from the 161st Air Refueling Wing, along with the Phoenix Police Department, participate in an Active Shooter exercise at the Phoenix Sky Harbor Air National Guard base, May 9, 2013. This exercise is part of an annual training requirement for the Airmen, in which SF and PD learn how to sweep and clear a building, as well as pass control, communicate, and investigate a crime scene. (U.S. Air National Guard Photo Story by Staff Sgt. Courtney Enos/Released)