The Weekly Standard....

has a very interesting article here.  Kenneth Anderson, a Professor at the Washington College of Law at American University, discusses religious toleration in the history of Western liberal thought (the good kind -- think Thomas Jefferson rather than Clooney).  He takes Mitt Romney to task for his now-famous " JFK Speech."
Anderson argues that some things in a person's (private) faith obviously affect what sort of decisions he might make as a (public) legislator.  The important thing is to determine which sorts of things are valid for discussion, and which are best left in the private domain.  Anderson refers to evangelical attitudes towards creationism, early Mormon attitudes to polygamy, and Muslim attitudes to all sorts of things as views which lead to significant public policy decisions, while a Buddhist's belief in reincarnation, a Catholic's belief in transubstantiation, and a Jew's disbelief in the divinity of Jesus should stay private.
Anderson is at his best when he explains the difference between multiculturalism and toleration.  Multiculturalism leads to relativism (of course) while toleration represents an ability to separate what is properly private and public; toleration, indeed, cannot survive in the multiculturalist (not multicultural, BTW) society, precisely because it depends on a moral judgment of what is acceptable public behavior, and what is not.  Multiculturalism, as we see in Europe and Canada, has made it so that it is very difficult to even criticize Islam without being perceived as racist or xenophobic.  What Romney's speech possibly did was establish a precedent for a form of what Anderson calls "conservative multiculturalism," which may not serve America's (or the West's) long-term interest.

All in all, it is an excellent piece; well worth your time.