From left, Staff Sgt. Nqoua Yang, 82nd Security Forces Squadron trainer, and Georgia McCullough, Department of the Air Force officer, give teachers a briefing before an active shooter exercise at the elementary school on Sheppard Air Force Base, Texas, April 20, 2018. The teachers were given briefings about their roles in keeping students safe and making sure no one else gets in danger. They also briefed the teachers on how the officers jobs would be to neutralize the target. ( Air Force Base photo by Airman 1st Class Pedro Tenorio)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: 82nd, active, drill, exercise, forces, school, security, sheppard, shooter, teachers, training, trw