[deciplex]

They are aware of their own motives, but they are probably not aware of why they have those motives in the first place. Offensive materials drive a person to violence, but the question you should ask is "what created this type of person, who kills over a cartoon?"

Note that this does not excuse the actions of the murderer. They are still responsible and still must be punished. But you can punish murderers for their crimes, and adjust your policy so that you don't create so many murderers. They are not exclusive goals.

[mc32]

I'm not so sure about that. What _drove_ the Spanish to drive out the Arabs from Iberia and execute those that stayed behind? What made them act like that? Or what made the Huns go and conquer half of Europe and kill about half of those and subjugate the rest? Was there something which could have prevented that had the Europeans just been different in some way?

[MichaelGG]

Sure, I agree! The policy of being polite, of not calling people out on inane beliefs is what generates these problems. We have failed as a civilization where someone ends up believing it's OK to kill someone for renouncing their faith, for instance.