Well these Danish cartoon protests are really getting out of hand in all respects. Thankfully the Danish government is sticking by it's guns and reaffirming it's committment to freedom of speech. Governments really have no reason to be regulating what people can and cannot say in this realm. The US Surpreme Court states that speech can only be reigned in if it constitutes a "clear and present danger" to national security or if it advocates directly and specificly for violent action. The purpose is to prevent speech that lacks any value and has considerable negative consequences. I tend to agree with this standard. It maximizes the best case scenarios of free speech while minimizing it's worst case scenarios.
Many people seem to be arguing that religion is somehow above criticism and that criticism of religion should be punished while criticism of other beleifs should not be punished. However, it is often hard to establish the difference between a religion and a philosophy or system of beliefs. Certainly, there are many examples that seem to be somewhere inbetween. Generally, religion is just a system of beliefs which makes certain assumptions about what happens before and after life. The cognitive dissonanced produced when taking such elaborate assumptions for granted often leads people to be insecure about their beliefs. So they tend to gather in groups and respond to criticism angrily or even violently.
I could come up with a number of criticisms of the Islamic belief system. By the same token, I could come up with a number of criticisms for all of the organized religions and even most belief systems in general. No logical system (that is, a set of axioms and their results) can be unequivically true, though they can be self-consistent. Godel proved this, though I don't see anyone protesting him. The idea that religion should be above criticism is utterly absurd. Why should these people care what some cartoonist wrote thousands of miles across the globe? Why should they care if they said it right next to them? It doesn't affect them in the slightest. The only explanation for such a violent response is extreme intellectual insecurity. The fact that the US government took such an apologetic stance shows only that they've been intimidated and have put short term security concerns above our most basic freedom.
It's kind of ironic then that down the block in Austria, a man was sentenced to three years in jail simply for stating his beliefs. The fact that he questioned the extent of the Holocaust shouldn't really have factored into the decision. Sure his beliefs were unpopular, and probably plain wrong, but he was doing no harm to the society. I highly doubt he could have caused another surge of facism in Austria of all places. Why the Austrian government is trying to stop facism by stomping on the freedom of speech is beyond me.