Many experts believe that the twin towers were also pre rigged.
An invasion overseas cannot be planned in mere days, it takes months of planning and preparation. According to Pakistani FM Niaz Naik, he was told by the US authorities in July 2001 that an invasion of Afghanistan was under consideration. The invasion plans were on president's table on 4th September ready to be signed. 7 days later, they had their excuse. AQ was not only allowed to carry out the hit but was facilitated so that it would shock the entire world. The public was made ready and brainwashed through Zionist owned media.
Many black things happen, people just swallow what they are being told by their governments.
The JFK assassination, the authorities wasted no time in declaring that he was a lone wolf. Then, Oswald himself was shot dead. Very convenient.