They may be overreacting a bit, but you guys are ignorant.  Portraying Mohammad in pictures is strictly forbidden in their religion.  Its a serious sin, like murder and theft in christianity.  They treat the Koran as the real word of god and it dictates their lives in those countries that aren't secular.
It's not at all similar to drawing perverted pictures of Jesus or God, nothing at all like that.  We have no equivilant crime in western civilizations because we live in such a different culture.  In their culture, its a serious, serious sin and crime.  Just because it isn't to us, does not mean it isn't to them.  America, Canada, and other western nations do not equal planet earth.  I'm amazed that those newspapers continue to run those pictures that are so offensive to one of the worlds largest religion.  Idiocy and Ignorance is all it is.  A feeling of superiority because they have a "freedom of speech and press" so they don't have to respect the wishes of other people.  They don't have to remove those cartoons from their papers, but they could as a gensture of good will and to recognize that it is offensive to Islam.  Idiots.