51 SFS practice active shooter school scenario
Staff Sgt. Pierre Johnson and Staff Sgt. Carl Higgins, 51st Security Forces Squadron patrolmen, look for a way in Osan Middle School during an active shooter exercise at Osan Air Base, Republic of Korea, Nov. 13, 2014. During the exercise, responders used rubber weapons to ensure no one is unintentionally injured. (U.S. Air Force photo by Senior Airman Matthew Lancaster)