Foam rests against a plastic barrier after a fire suppression system test in the newly renovated fuel cell hangar at Duke Field, Florida, Dec. 2, 2020. The fire suppression system test is one of the last steps of the renovations that need to be completed before the hangar becomes operational. (U.S. Air Force photo by Nicole King)

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Photo by: Nicole King |  VIRIN: 201202-F-GG241-0041.JPG