“Over the next year, Fuchs passed detailed written information to the Soviets about the problems and advantages of the implosion-type bomb design over the gun method. He was unaware that the Soviets were getting confirmation of his information from another Los Alamos resident.”

“Over the next year, Fuchs passed detailed written information to the Soviets about the problems and advantages of the implosion-type bomb design over the gun method. He was unaware that the Soviets were getting confirmation of his information from another Los Alamos resident.”

— Kai Bird