Airman 1st Class Justin Morris, 28th Maintenance Squadron metals technology apprentice, prepares to replace an unserviceable B-1 bomber bell crank housing in the metals technology shop at Ellsworth Air Force Base, S.D., May 2, 2012. Airmen rely on the metals technology shop for all welding maintenance of tools and equipment needed to successfully accomplish the base’s mission. (U.S. Air Force photo by Airman 1st Class Kate Thornton/Released)