What is to be gained? hmm

9/11 in effect granted Bush with more executive power than any President before him, with legislations such as Patriot Act, Military Commissions Act. It allowed him to get away with violating Foreign Intelligence Survellence Act of 1978.

There is no doubt that the Iraq War Resolution would not have passed pre-9/11. Where has all the money gone? WEAPONS CONTRACTS! To whom? Halliburton!

Larry Silverstein also signed an enormous insurance agreement specifically for terrorism in the weeks leading up to 9/11.

Put options on Boeing, Am Airlines, and United were 3-5 times the daily average in the week before 9/11.

Is there proof that it was an inside job? Probably not. Was there anything to gain from it? Certainly.