The Charlie crew, made up of U.S. and Canadian military personnel, work the night shift on Jan. 18, 2006, at the NORAD command center in Cheyenne Mountain, Colo. (AP Photo/Denver Post, John Epperson) ** FILE **
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The Charlie crew, made up of U.S. and Canadian military personnel, work the night shift on Jan. 18, 2006, at the NORAD command center in Cheyenne Mountain, Colo. (AP Photo/Denver Post, John Epperson) ** FILE **
