DoD Lab Day 2017
Maj. Gen. William T. Cooley, commander of the Air Force Research Laboratory, welcomes Secretary of the Air Force Heather A. Wilson to the Air Force exhibit area during the 2nd biennial DoD Lab Day at the Pentagon center courtyard May 18, 2017. (U.S. Air Force photo/Mikee Huber)

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Photo by: Mikee Huber |  VIRIN: 170518-F-RV363-209.JPG