Look: It's a dumb and unnecessary thing to do, but that doesn't mean it should be forbidden. You're wanting to take civil and criminal action against people that are excercizing their rights in Western democracies.
And that's not something I'd ever be willing to compromise on, least of all to please an angry mob in the streets in Libya that has a lot of "growing up" to do, so to speak.
The people that are murdered by these angry mobs are a good reason to refrain from publishing things you expect would have that effect, but the responsibility ultimately lies in the people doing the killing, not the people peacefully using their freedom of the press.
Those people using their freedom of the press should know that what they publish has consequences. If those consequences led to the deaths of innocent people, then they have some responsibility on the moral level at least.
The responsibility is that of those who would kill over triviality. These people have to realize that it is the 21st century and their attempts to quash dissent
must fail.