8/24/2012 - Airman 1st Class Alison Kriener, 2nd Maintenance Squadron metals technology, welds a tie-down bracket on Barksdale Air Force Base, La., Aug. 24. Airmen must wear proper protective equipment such as gloves and welding helmets while welding to prevent injuries. (U.S. Air Force photo/Airman 1st Class Micaiah Anthony)(RELEASED)

8/24/2012 - Airman 1st Class Alison Kriener, 2nd Maintenance Squadron metals technology, welds a tie-down bracket on Barksdale Air Force Base, La., Aug. 24. Metals technology Airmen fabricate parts for aircraft, munitions and equipment, and are capable of building items from scratch. (U.S. Air Force photo/Airman 1st Class Micaiah Anthony)(RELEASED)