Good thing. We (in most of Europe and parts of the US) tamed much of the Christian violence, now comes the next one. If their "protest" means killing artists, bombing embassies and planes and discotheques, we have to fight back the way fanatics hate most: Laughing into their hateful faces. (If laughing won't help, we still have bombs, too.) And those who think that Muslim extremists aren't a threat to our freedoms (which includes the freedoms of the moderate/secular Muslims as well) should visit Western or Northern Europe and see for themselves.

edit: That's what happens in Europe now. (A mild example.) http://www.youtube.com/watch?v=YIsC2_KbZfo