This Crowded Earth
"Well, a bomb wouldn't help. You know that." Frazer pursed his lips. "Robertson figured out what would happen, with the chain-reaction."
* * * * *
Harry glanced sideways at his companion as the car started forward once again. "I've always wondered about that," he said. "Seriously, I mean. Is the story really true, or is it just some more of this government propaganda you fellows like to hand out?"
Frazer sighed. "It's true, all right. There was a scientist named Robertson, and he did come up with the thermo-nuc formula, way back in '75. Proved it, too. Use what he developed and the chain-reaction would never end. Scientists in other countries tested the theory and agreed; there was no collusion, it just worked out that way on a practical basis. Hasn't been a war since--what more proof do you want?"
"Well, couldn't they just use some of the old-fashioned hydrogen bombs?"
"Be sensible, man! Once a war started, no nation could resist the temp