 And if you can't detect something, how do you know you can't detect it? Okay, if it's so small you can't hear it or see it, then you're in trouble. The question is, what are nuclear weapons for? They're for deterrence. Our bad guys are going to the theater system, small-scale, battlefield-type weapons, which we have long thought was passe and no longer viable. That's what Putin is arguing about in Ukraine. That's what the Chinese are arguing about in Taiwan.