Walking in a foamy wonderland
1st Lt. Joshua Brock measures the height of the fire retardant foam in a hangar on Charleston AFB Dec. 3. Base officials tested the newly installed system and will continue to test it every five years to ensure the proper amount of foam is released within a certain time period. Lieutenant Brock is with the 437th Contracting Squadron. (U.S. Air Force photo/Senior Airman Timothy Taylor)