"September 11 is clearly an inside job, there's massive evidence that suggests that it was either allowed to happen or even worse, deliberately made to happen. There was a document called Project For The New America Century which was made by neo-Con writers in the '90s who supplied most of the agenda that Bush is putting into place now, which clearly says, 'We need a Pearl Harbor-level of event so we can have an excuse to invade the Middle East'."
Simple: September 11 was carried out by someone in the government. There is a lot of evidence that the government let the attacks happen or they made the attacks happen. Neoconservative writers in the 1990s wrote a document called Project For The New America Century which is what Bush uses as a guide to run his administration. The document said that America needed an attack like Peal Harbor so we have a reason to invade the Middle East.