"Well," he said, "ever since we started production I've had all the talent we could spare working on the problem of a defense against the dust. Ridpath tells me and I agree with him that there is no means whatsoever to combat the stuff, once it's used."
"How about armor," I asked, "and protective clothing?
"Sure, sure," he agreed irritatedly, "provided you never take it off to eat, or to drink or for any purpose whatever, until the radioaction has ceased, or you are out of the danger zone. That is all right for laboratory work; I'm talking about war."
I considered the matter. "I still don't see what you are fretting about, Colonel. If the stuff is as good as you say it is, you've done just exactly what you set out to do — develop a weapon which would give the United States protection against aggression."
He swung around. "John, there are times when I think you are downright stupid!"
I said nothing. I knew him and I knew how to discount his moods. The fact that he permitted me to see his feelings is the finest compliment I have ever had.
"Look at it this way," he went on more patiently; "this dust, as a weapon, is not just simply sufficient to safeguard the United States, it amounts to a loaded gun held at the head of every man, woman, and child on the globe!"
"Well," I answered, "what of that? It's our secret, and we've got the upper hand. The United States can put a stop to this war, and any other war. We can declare a Pax Americana, and enforce it."
"Hm-m-m — I wish it were that easy. But it won't remain our secret; you can count on that. It doesn't matter how successfully we guard it; all that anyone needs is the hint given by the dust itself and then it is just a matter of time until some other nation develops a technique to produce it. You can't stop brains from working, John; the reinvention of the method is a mathematical certainty, once they know what it is they are looking for. And uranium is a common enough substance, widely distributed over the globe — don't forget that!
"It's like this: Once the secret is out — and it will be out if we ever use the stuff! — the whole world will be comparable to a room full of men, each armed with a loaded .45. They can't get out of the room and each one is dependent on the good will of every other one to stay alive. All offense and no defense. See what I mean?"