You are repeating an Urban myth started by the 9-11 Truthers like Michael Moore and Rosie O'Donnel months after 9-11.
It most certainly IS true and was an extensive part of the 9/11 Commission report which I read from beginning to end. And even THAT did not cover as well as it should have many other factors that have come to light via the FOIA.
I have never accused bush or the US of being overtly or covertly involved in 9/11 and I resent your insinuation. Enlighten yourself before you make accusations like that.
The Sauds and bin ladens, (as well as many other prominent arabs,) have extensive land holdings in Kentucky and Tennessee because of their obsession with horses and horseracing. They also have extensive land holdings in southern FLA. It was thought that in the wake of 9/11, their lives were in imminent danger so they were ALL secretly flown to Andrews AFB and then out of the country.