This seems like such an obvious point, but it is apparently not obvious to the many people who oppose the Cordoba Initiative's planned mosque in lower Manhattan, so let me state it as clearly as possible: The Cordoba Initiative, which is headed by an imam named Feisal Abdul Rauf, is an enemy of al Qaeda, no less than Rudolph Giuliani and the Anti-Defamation League are enemies of al Qaeda. Bin Laden would sooner dispatch a truck bomb to destroy the Cordoba Initiative's proposed community center than he would attack the ADL, for the simple reason that Osama's most dire enemies are Muslims. This is quantitatively true, of course -- al Qaeda and its ideological affiliates have murdered thousands of Muslims -- but it is ideologically true as well: al Qaeda's goal is the purification of Islam (that is to say, its extreme understanding of Islam) and apostates pose more of a threat to Bin Laden's understanding of Islam than do infidels.
I know Feisal Abdul Rauf; I've spoken with him at a public discussion at the 96th street mosque in New York about interfaith cooperation. He represents what Bin Laden fears most: a Muslim who believes that it is possible to remain true to the values of Islam and, at the same time, to be a loyal citizen of a Western, non-Muslim country. Bin Laden wants a clash of civilizations; the opponents of the mosque project are giving him what he wants.