... I think it's much more likely (but still not very) that bin Laden was paid/encouraged by the US government than the idea that the US got their own people to do all these things, including setting up explosives on the towers to demolish them, and not one single person out of the dozens and dozens who would have had to be involved has said a single peep about it in ten years. It would be impossible to keep something like that quiet, and anyone concocting a giant conspiracy master plan would not hinge it on the inexplicable silence of everyone involved.