The Imam has denounced terrorism and Al Qaeda many times:
http://www.islamfortoday.com/60minutes.htm
Faisal: Fanaticism and terrorism have no place in Islam. That's just as absurd as associating Hitler with Christianity, or David Koresh with Christianity. There are always people who will do peculiar things, and think that they are doing things in the name of their religion. But the Koran is... God says in the Koran that they think that they are doing right, but they are doing wrong.
That was actually his gig when he was employed by the State Dept. He traveled all over the middle East giving speeches against terrorism and such.