Rage is all the rage. As we all know, radical Muslims are enraged about blasphemous videos and cartoons—so much so that an American ambassador to a country liberated by the United States was murdered by a howling mob in Libya. I worry about that. I worry even more about this administration’s lame response to it. But perhaps we should all worry the most about a very different kind of rage: the Chinese rage that takes the form of a hyperventilating nationalism, says Niall Ferguson.