A2B tracking system
Staff Sergeant Marcus Millen, left, trains Airman Steven Johnson, 100th Comunications Squardon, how to process bar codes into a handheld tracking pad at the RAF Mildenhall post office May 31. The handheld tracking pad is part of a new process called the A2B Tracking system which the post office started May 24. (U.S Air Force photo by Airman Brad Smith)