I honestly think it wasn't a hoax or an inside job. US didn't need to destroy the financial hub of the world just to attack Afghanistan. The destruction of the towers did an unrepairable damage to US and the World. US didn't even know about it. After it was done, they bombarded the media with conspiracy theories and stuff to make it look like an inside job. After all, if they really accept that muslims did it, the first question would be, What happened to the technology of the super power?