Staff Sgt. Mark Sidle, 28th Security Forces Squadron dog handler, apprehends Tech. Sgt. Aaron Hazen, 28th Bomb Wing NCO in-charge of the executive client support team, during an “active shooter” exercise, April 15. The purpose of the exercise was to test the total reaction and response time of the 28 BW. (U.S. Air Force photo/Senior Airman Adam Grant)