Define "fringe". I'm sure you don't agree with them, and you may not even know many people who do, but given that there are (and if my understanding is wrong,

Define "fringe". I'm sure you don't agree with them, and you may not even know many people who do, but given that there are (and if my understanding is wrong, feel free to correct me) several Muslim countries/polities where you'd be mobbed in the street within seconds for wearing a t-shirt with one of the Danish cartoons on it, or thrown in jail if found by the police, all of it condoned by the government...I don't know if the radical movement really meets the standard definition of "fringe group". You give the examples of the Vatican and Utah. Be offensive in the Vatican and you may be escorted out by security; in Utah, I'm pretty sure the worst you'll get is ignored (I've met a lot of Mormons and they're the friendliest people in the world). Not really comparable to offending radical Muslims.