Now that Feisal Abdul Rauf has chosen - most unwisely I think-- to obliquely threaten us all with violence if we do not surrender to his demands and the demands of those who in "anger will explode in the Muslim world," let's go back and make sure we know not what the websites devoted to presenting him as a "moderate" say, but what Feisal Abdul Rauf is on record as saying. He is, this Feisal Abdul Rauf, slippery as he is, unambiguously on record as refusing to denounce a clear terrorist group devoted entirely to destroying an entire Infidel nation-state, that is, Hamas. Furthermore, he is also on record as wanting Muslims in the countries of the non-Muslim West to temporarily accept the secular laws but to work to change those laws and replace them, where they in his view need replacement -- that is, when they do not conform to the Shari'a -- so that the secular laws of the country become more and more those of the Shari'a. People do not understand what that means. That means he, Feisal Abdul Rauf, is calling for the overthrow -- not, given current circumstances, the violent overthrow, but still the overthrow -- of the American Constitution, that is, of our legal and political institutions.
You can read Fitzgerald's entire analysis, here.
More about Imam Feisal Abdul Rauf by Ibn Warraq in National Review Online, here... and again, in an article entitled "The Two Faces of Feisal Abdul Rauf," here.