I've seen a poll that says 30-40% of the population believes Bush had a hand in the 9/11 attacks. Of course, those numbers may be wrong because that many people believing that the president was involved in the slaughtering of thousands of Americans is extremely unlikely. *He has killed hundreds of thousands, but they weren't Americans, so we don't seem to mind.* If those numbers are correct it shows how apathetic our population is. For a person to believe that their government has done such a thing, but take no action...that kind of apathy is most definitely pathetic.
Personally, I don't believe Bush or his administration had anything to do with the attacks. First, all sarcasm aside, he'd have to be insane. Secondly, with the way our government runs, something that monumental would have surely leaked. If it's all true then why wouldn't the administration blame Iraq directly? They wanted to invade Iraq, so in blaming them directly they would've had massive support from the population, most assuredly a UN charter, and NATO would have supported them 100%. It would have made the invasion of Iraq so much easier on the administration to blame crazy Saddam at the start. Instead, Bush and the gang had to jump through all kinds of hoops to blame Iraq and make up stories about WMDs as well as trying to create connections between Saddam and Bin Laden. Bush made one reason to invade very clear when he said, "After all, this is the guy that tried to kill my dad." He made that statement while giving a speech at United Defense, a company responsible for supplying the majority of US military hardware.
The conspiracy will remain just that, and without any sort of credible evidence the people involved in trying to prove it will never be taken seriously. Believe whatever you want to believe, it's your right.