I'm sorry, but I don't see any particular skulduggery or deeply hidden secrets in the World Trade Center destruction. I've found that the obvious explanation is usually the best one. I find the fantastic theories about as credible as those of the "birthers" who think Obama was born in outer space, or whatever.
I'm sure the terrorists who commandeered the aircraft on 9/11 were sincere about their cause, and it seems quite clear that they were working for a terrorist organization headed by the wealthy Osama bin Ladin; and I think their American opponents were likewise sincere.
-Joe-