Guiding Lights
ALI BASE, Iraq --Senior Airman George Carameta, 407th Expeditionary Communications Squadron network technician, lowers an aircraft obstruction light down to Staff Sgt. Ray Stetler, 407th ECS base information and infrastructure NCOIC, Aug. 2, 2008. The aircraft obstruction lighting keeps multi-million dollar aircraft from colliding into the towers when visibility is low, either due to darkness or weather conditions. Both Airman Carameta and Sergeant Stetler are deployed from Tinker Air Force Base, Okla. (U.S. Air Force photo/Airman 1st Class Christopher Griffin)