HOT SPOT U.S. Air Force Staff Sgt. Nicole Lomax uses a metal inert gas welding machine to weld a T-joint for her skill-level upgrade on Lackland Air Force Base, Texas, April 2, 2009. Lomax is assigned to the Air Force Reserve Command's 433rd Airlift Wing. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 415098-B-WEB22-150.jpg Photo Gallery