The 9/11 attack on America which occured on September 11th, 2001 was carried out by operatives of Al Queda who were funded by Saudi nationals. 15 of the hijackers were of Saudi origin while the others all subscribed to the Jihadist goals of Al Queda. Usama Bin Laden leads the Al Queda operation and was involved in planning the 9/11 attack. Through a network of sleeper cells in America the terrorists manuevered into place and boarded planes which were to be hijacked. They were able to board the flights using box-cutters which they used to threaten and bully the crews into entering the cockpits of these planes. These terrorists trained how to fly the jet airliners and were able to pilot them to their intended destinations. Two of the planes hit the World Trade Center, where my brother was working that morning... My brother perished in this attack... One plane was intended to take out the White house but this plane was prevented from hitting its target by passengers who attempted to break into the cockpit and kill the terrorists. A third plane was piloted to the Pentagon where it did a good amount of damage and killed several Pentagon workers but it did not completely destroy the pentagon.
The connections of the terrrorists is well established. The will of the terrorists is clearly to perpetrate Jihad against the west, as it has been doing for many years. Al Queda has been on the intelligence radar for almost 30 years and I believe it was involved with the Lebanon Marine barracks attack in the 1980s, the bombings of several African embassies, the 1st WTC bombing, the USS Cole attack, and many many other attacks against the west.
If a person denies this they are living in a fantasy world...