Blood, Sweat, and Stairs
Fire Protection vehicles are put on display at the Louis F. Garland Department of Defense Fire Academy on Goodfellow Air Force Base, Texas, Oct. 5, 2019. The attack on the World Trade Center created a shift among firefighters, their preparedness and awareness of the possibility of mass causality events increased dramatically. (U.S. Air Force photo by Airman 1st Class Ethan Sherwood/Released)

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Photo by: Airman 1st Class Ethan Sherwood |  VIRIN: 191005-F-ZB472-1242.JPG