Beale tests readiness during active shooter exercise
9th Security Forces Squadron Airmen enter a building during an active shooter exercise after arriving on scene Jan. 13, 2017 at Beale Air Force Base, Calif. The exercise took place in a building on the flightline and began at approximately 10 a.m. (U.S. Air Force photo/John Schwab)

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Photo by: Airman Tristan D. Viglianco |  VIRIN: 170113-F-FP637-021.JPG