U.S. Air Force Tech. Sgt. Brooke Williams, the 60th Security Forces Squadron's Raven program manager, runs as the point person on a security team responding to a simulated active shooter event April 13, 2016, at Travis Air Force Base, California. As a Phoenix Raven, Williams provides close-in security for Air Mobility Command aircraft transiting airfields where security is unknown or additional security is needed to counter local threats. (U.S. Air Force photo by Staff Sgt. Charles Rivezzo)