Airman 1st Class Brett Ritter, an air transportation rigger with the 58th Operations Support Squadron, practices securing a chain to a device for securing cargo to a heavy pallet, during Phase III of the Aerial Port Night Vision Course on March 11 at Kirtland Air Force Base, New Mexico. Phase III of the training includes uploading/downloading cargo In a real world no-light/low-light environment on an aircraft with the engines running. (U.S. Air Force photo by Master Sgt. Phyllis Keith)