Noting recent events, I link to this old post defending the mocking and satire of religious beliefs, and this one on the Islamist fatwa of death against the playwright Terence McNally for portraying Jeses (an honored prophet in Islam) as gay. Note that McNally is not and has neverbeen a Muslim. The structure of some Islamists' understanding of blasphemy rules allows them to pass potentially-violent judgment on how Christians depict Jesus; what's at stake isn't only deference on the question of how Mohammed may be portrayed.