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LACKLAND AIR FORCE BASE, Texas -- Col. Thelma Hales (left) and George DeCoux test one of the new Global Electric Motorcars this base is using to conserve energy. The GEM seats four people and can travel at 25 mph. The colonel is commander of the 37th Mission Support Group at this training base. Mr. DeCoux is the unit's deputy for installations. (U.S. Air Force photo by Raymond V. Whelan)