A fuels technician recycles aviation fuel after it was tested at the U.S. Air Force's 8th Logistics Readiness Squadron fuels laboratory at Kunsan Air Base, Republic of Korea, Sept. 4, 2012. Contaminants and water are some of the things fuel is tested for prior to being issued out. (U.S. Air Force photo by Senior Airman Brigitte N. Brantley/Released)