I cannot figure out why people in this country would be opposed to a missle defense system? Why is Russia and China oppose to it? It is a defensive system. It is not an offensive weapon. I think I know why Russia and China are opposed to it. But, I cannot understand why any American would be. If a terrorist or a rouge nation fired a missle with a nuke warhead and we shot it down saving a major US city, isn't that a good thing?