NORAD doesn't do ground inspections."<i>directed 20 guys with boxcutters to make it past a $1 trillion air defense system called NORAD</i>"
Those were commercial airliners, genius. NORAD had nothing to do with it, except to look at the smoking holes in the ground after the airliners hit.
They intercept planes while they are in flight and off course (except on 9/11 2001). If you don't know that, don't bother to comment.