U.S. Air Force Senior Airman Jeffery Greene, 633rd Security Forces Squadron military working dog handler, keeps control of his partner, Rico, while on alert at Langley Air Force Base, Va., Nov. 15, 2012. Greene arrived on scene with Rico soon after the first responders responded to the active shooter exercise. (U.S. Air Force photo by Airman Kimberly Nagle/Released).
Airman 1st Class Kimberly Nagle
Taken on 15 November 2012
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