The air up there
BALAD AIR BASE, Iraq -- Staff Sgt. Gregory Norris, 332nd Expeditionary Civil Engineer Squadron heating, ventilation and air conditioning maintainer, attaches a hose to a water pipe while troubleshooting a malfunctioning air conditioning unit here, June 11. Maintaining cool temperatures in base facilities helps keep high-tech electrical equipment found in those buildings operating efficiently. Sergeant Norris is deployed from Luke Air Force Base, Ariz. (U.S. Air Force photo/ Senior Airman Julianne Showalter)