In your world maybe.
I'm sorry, but you've come across as a truther nutter who appears to need it to be a secret dark conspiracy and cannot accept that a few lowely AQ operatives pulled off the most audacious terrorist attack in human history.
As Verbal says, read up on it, as I have done, with an open mind in the beginning, and you'll reach one simple truth and that will be that AQ did it all one their lonesome.
I had really wanted it to the the Israelis.