Why don't the Muslim countries broadcast images of Jesus?

I know it's a bit late, but I was just thinking about how the Muslim countries in the Middle-East got so upset over a picture of Muhammad. Instead of rioting and burning flags, why don't they just retaliate by showing pictures of Jesus? Maybe put him in a clown suit so that it's even more offensive. Seriously though, why do these people go for such overkill on everything?