It's no secret that we live in a pretty dangerous world. And one of the reasons for that is there's an awful lot of people with an awful lot of missiles. I remember when there was this one superpower other than us that had the power to do a lot of destructive things with missiles. And today there's a proliferation and many countries have nuclear capability. It seems like more are on the way. And out of that came the idea of a new kind of missile, an anti-missile missile. And the idea there is that we can launch a defensive missile to pre-empt and destroy an incoming enemy missile. Well, if we've got to live in that kind of a world, that sounds like a good idea to me.