William Burris, Air Force Civil Engineer Center environmental restoration program manager, speaks attendees of the Brandywine Environmental "Flip the Switch" ceremony, Jan. 31, 2019 in Brandywine, Maryland. The ceremony marked the start of the final step in restoring environmental conditions in the area by using cutting-edge technology. (U.S. Air Force photo by Staff Sgt. Cary Smith)

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Photo by: Staff Sgt. Cary Smith |  VIRIN: 190131-F-LS872-1009.JPG