Dilbert1234567 you say Norad could not track the planes because the transponders were turned off ? Norad is military and enemy jets and missles do not have transponders, and commercial planes are in the air in case of a nuke attack with 1000 missles (with no trasnponders) but Norad is made to track and identify them.
Hijacked plane = enemy plane, Norad could find them easy.
Here are some real news :
http://video.google.com/videosearch?q=9%2F11
The official report is full of holes, unlike the documentaries above, try the first one
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