I never understand the difference between "moderate" and "extremist" clerics of any religion. Religion breeds extremism. Here is from the final section of the statement of "moderate" Muslim clerics/kooks and it stated: "the conference called upon the representatives of the various religions, sects and schisms to fight off the forms of contempt of religion and insults to sanctities". Clerics of other religions were there, and they are all as bad as the rest.