Re: 9/11 conspiracies

Reading for fun. There are all kinds of sites that talk about what happened and how it happened (in their view) - but none of them talk about WHY. Even if they talk about the military or some rogue section of the CIA or whatever, they never give any reasons why. That is what I'm looking for. Because I can (somewhat) buy into the theory that we haven't been told everything, that some things don't add up, that some things have been covered up, but I'd be much more inclined to believe the wacko theories if any of them answered the simple question of.......why?