19 arabs highjack 4 planes in our airspace, avoid all our air defenses and ALSO pre-wired both WTC towers and building 7 without detection? The Bush administration fights all efforts at investigation and then refuses to cooperate with requested evidence?  Think CIA!  They have the know how, access, motive, financing and could stand down or keep busy on air defense manuevers - all our air defenses!  Keep smoking what your smoking..but don't pass it around.