I repeat that the onus is now on the conspiracists to come up with a viable and comprehensive alternative theory.
And this is one problem I have with conspiracy theories: they aren't theories. They do not actually have any viable, testable model of what happened. Like creationism, it all consists of attempts to poke holes in the official version. There may well be holes in the official version, and there may well be things the government is keeping secret (governments are notoriously obsessed with secrecy for its own sake) but that still does not support the conspiracy version.
Another problem I have with conspiracy theories is simply that they require implausibly large secrets to be kept. Large scale plans never work out as planned, even when they are out in the open for all to see. Why would it go so smoothly with completely secret plans?
Question: Suppose the WTC buildings had not collapsed. Would the incident still serve as plausible reason for Bush and pals to invade Iraq and turn America into a police state? I would think going to all the trouble to plant explosives etc. would be completely unnecessary, especially considering what a huge secret already needed to be kept.
But frankly, as little as I think of Bush, I don't think he is quite that evil, that he would murder 3000 of his fellow Americans for any reason.