From left, Col. Korvin Auch, 633rd Air Base Wing commander, and Staff Sgt. Ayesha Garrett, 633rd Medical Support Squadron noncommissioned officer in charge of microbiology, examine bacteria during a visit to the 633rd Medical Group at Langley Air Force Base, Va., June 27, 2011. The commander’s base tour focused on the wing's mission to deliver well-prepared Airmen and Soldiers. (U.S. Air Force photo by Airman 1st Class Racheal Watson/Released)