That won't work either.
Saying that the aggressor is "defending his faith" is such a blatant joke that even normal kids can laugh at that one.
I know it's absurd. But that's what Osama is selling.
It's all he has left. Try to morph our righteous wrath against terrorism into a full blown "attack on Islam by the infidels!"
Put it in the context of an attack on religion as opposed to punishment for a horrible act.