This Charlie Hebdo saga must end. The world and also the western countries confuse freedom of speech with incitement to hatred. Freedom of speech or action, can be defined as any action that is socially constructive. Not destructive.
If anyone does not know the difference, then as a general rule, speech that can be spoken publicly, without giving rise to violence, can be viewed as free speech. This of course under peaceful and not war conditions.
The broad humor of caricatures and satire can not be a precise critique of any religion or philosophy. And invariably and unfairly targets the entire ideology and the community. Scapegoating and sidelining entire communities.
One can, from a rational and scientific and historical view, critique any person's or ideology or religion. This form should be reserved for talking about religions. Nobody will then feel violent or hard done by. That speech is truly free speech. The rest is incitement and hatred.