We've already been round and round that merry go round a number of times before. We know that the missile defense shield is not fool proof. Some missiles can still get through it.

The only way to prevent the scenario in which millions of people get killed by nuclear weapons is to work as hard as we possibly can to eliminate nuclear weapons from the world. The missile defense shield provides people with a false sense of security which removes the incentive for them to eliminate the nuclear weapons. So I'm not the person in this discussion who will be responsible for killing millions of people with nuclear weapons. That person would be the one who favors using the "missile defense shield".