NORAD Chief of Staff Maj. Gen. Charles D. Luckey takes a call while volunteering at the NORAD Tracks Santa center at Peterson Air Force Base in Colorado Springs, Colo., Dec. 24, 2014. (AP Photo/Brennan Linsley, File)
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NORAD Chief of Staff Maj. Gen. Charles D. Luckey takes a call while volunteering at the NORAD Tracks Santa center at Peterson Air Force Base in Colorado Springs, Colo., Dec. 24, 2014. (AP Photo/Brennan Linsley, File)
