You're under the power of dillusion if you believe that. Someone has messed with your mind. It's time to use your God given intelligence and just think about how ludicrous the statement "the American Government attacked the twin towerS" is.
"Ya, ok, boys, we gotta crash some planes into the twin towers... Why?...I don't know... just do it... let's stir the world up a little...it's all about the oil...come on, let's go back in the bushes for some satanic rituals...I just got the urge to sacrafice someone...whooeee, this is gonna get interestin'..."
When does a fool discover he's a fool? It's one thing to think and believe some idiot idea, like, 'america is attacking itself', but to spread it around and try to create other fools, well, that is a sad state to be in.