Hill Command Post: Masters of disaster
The ‘Giant Voice’ machine sits in the Hill Air Force Base Command Post, Nov. 18, 2016. Using quick-reaction checklists, specialized hotline telephone networks and essential controller judgement, command post personnel use multiple notification systems to inform base populace of impending situations and recalls. (U.S. Air Force photo by R. Nial Bradshaw)

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Photo by: R. Nial Bradshaw |  VIRIN: 161118-F-OD616-0006.JPG