North American Aerospace Defense Command Center (NORAD). The joint American/Canadian air-defense headquarters, deep inside Cheyenne Mountain, Colorado (c.2005) [1152x922]
![North American Aerospace Defense Command Center (NORAD). The joint American/Canadian air-defense headquarters, deep inside Cheyenne Mountain, Colorado (c.2005) [1152x922]](http://upload.wikimedia.org/wikipedia/commons/5/5d/NORADCommandCenter.jpg)
Posted Apr 14, 2013, 12:37 AM UTC
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Posted Apr 14, 2013, 12:37 AM UTC