Senior Airman Jay Pickle conducts a refractometer test Dec. 28 to check the fuel system icing inhibitor level of a recent shipment of fuel to Ali Base, Iraq. A sample of fuel must be tested for every shipment received to ensure the quality meets the strict standards to be used in Air Force aircraft. Airman Pickle is assigned to the 407th Expeditionary Logistics Readiness Squadron and is deployed from Yokota Air Base, Japan. (U.S. Air Force photo/Airman 1st Class Jonathan Snyder)