KC-135 Stratotanker sits on the flight line during an exercise at Grand Forks Air Force Base, North Dakota on November 28, 2007. The base is undergoing an strategic exercise in the -12 degree weather, -20 degree wind chill, a typical North Dakota day in the winter months. (U.S. Air Force photo/Senior Airman Chad M. Kellum)
KC-135 Stratotanker gets prepared for an exercise mission by a deicer on the flight line at Grand Forks Air Force Base, North Dakota on November 28, 2007. The base is undergoing a strategic exercise in the -12 degree weather, -20 degree wind chill, a typical North Dakota day in the winter months. (U.S. Air Force photo/Senior Airman Chad M. Kellum)(Released)
KC-135 Stratotanker gets prepared for an exercise mission by a deicer on the flight line at Grand Forks Air Force Base, North Dakota on November 28, 2007. The base is undergoing a strategic exercise in the -12 degree weather, -20 degree wind chill, a typical North Dakota day in the winter months. (U.S. Air Force photo/Senior Airman Chad M. Kellum)
KC-135 Stratotanker gets prepared for an exercise mission by a deicer on the flight line at Grand Forks Air Force Base, North Dakota on November 28, 2007. The base is undergoing a strategic exercise in the -12 degree weather, -20 degree wind chill, a typical North Dakota day in the winter months. (U.S. Air Force photo by Senior Airman Chad M. Kellum)