Huh? Why did they pass it then, if it doesn't do them any good?
This isn't stuff they
might do, the PATRIOT ACT and invasion of Iraq are not conspiracy theories, they're historical facts. They happened. And yet you're asking
why would they do it, as if they haven't actually done it.
As to 9/11 itself, you don't have to believe in thermite bombs or other specific ideas to be a skeptic, all you have to do is be unconvinced by at least one thing in the official story.
And to believe that story you have to believe that everything, without exception, went down the way 19 people armed with box-cutters wanted, and everything, without exception, failed, by chance or by incompetence, on our side.
That in itself, without all the other oddities surrounding 9/11, is not credible.