Easy to explain it. You've filled your noodle with a bunch of mush about PNAC, NWO, Trilateral Commission, Bildeberger, Illuminati. *list conspiracy here*, and you'll happily gargle it.
...and I'm quite sure you've lapped up the conspiracy theory about a little skinny guy in a cave from the ME directing his little band of followers in a successful attack against a military power that spends hundreds of billions per year in defense? Oh yeah, and explain to me just how lucky he was to pick the exact time day and time NORAD had selected to run their "Vigilant Guardian" drill that left the E. Coast so exposed.