Wonder if he did it as a way of apologizing for Hiroshima and Nagasaki.
We are so sorry for bombing Hiroshima that we have set in play policies to ensure that one of our cities will be nuked by terrorists in a few years. That way America will assuage its guilt. Why should Japan be the only nation to have suffered such an attack? It is only right that New York, LA or Miami is sacrificed in exchange.