Demystifying 9/11: Israel and the Tactics of Mistake by DR Alan Sabrosky(Former Director of US Army War College) http://www.veteranstoday.com/2011/06/28/demystifying-911-israel-and-the-tactics-of-mistake/

I am also absolutely certain as a strategic analyst that 9/11 itself, from which all else flows, was a classic Mossad-orchestrated operation. But Mossad did not do it alone. They needed local help within America (and perhaps elsewhere) and they had it, principally from some alumni of PNAC (the misnamed Project for a New American Century) and their affiliates within and outside of the US Government (USG), who in the 9/11 attacks got the “catalytic event” they needed and craved to take the US to war on Israel’s behalf, only eight months after coming into office.