Grand Forks Air Force Base and local law enforcement rally to discuss events of an active-shooter exercise August 14, 2018, on Grand Forks Air Force Base, North Dakota. The exercise was a collaborative effort between the Grand Forks AFB law enforcement and medical units, Grand Forks County law enforcement, and the Grand Forks Public School administration. (U.S. Air Force photo by Senior Airman Elijaih Tiggs)

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Photo by: Senior Airman Elijaih Tiggs |  VIRIN: 180814-F-LG031-1004.JPG