319th Security Forces Airmen participate in active-shooter training
A U.S. Customs and Border Protection agent takes cover behind a vehicle in the parking lot behind Carl Ben Eielson Elementary School during an active-shooter scenario Aug. 10, 2017, on Grand Forks Air Force Base, N.D. The USCBP led the three-day training event, providing classroom and hands-on training dealing with a variety of active-shooter scenarios. (U.S. Air Force photo by Airman 1st Class Elora J. Martinez)

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Photo by: Airman 1st Class Elora J. Martinez |  VIRIN: 170810-F-DW631-2181.JPG