It is not because Al-Qaida didn't want to repeat it. It is not because Al-Qaida didn't try to repeat it. It is because Al-Qaida could not repeat it, and that is because of George Bush!
Furthermore--President Bush has fought the war in Al-Qaida's territory and not in America, as Al-Qaida planned to do when it declared war on the US.
President Bush has done an excellent job, and he must be re-elected!