J. Robert Oppenheimer, the father of the atomic bomb, is often credited with helping the Soviet Union develop its own nuclear weapons program. However, the extent of his help is still debated.
Some historians believe that Oppenheimer provided the Soviets with classified information about the Manhattan Project, the American program that developed the atomic bomb. Others argue that he only provided general information about nuclear physics, and that the Soviets were able to develop their own program without his help.
There is some evidence to support both sides of the argument. For example, Oppenheimer did meet with Soviet officials during the war, and he did share some information with them. However, he also refused to share other information, and he was eventually stripped of his security clearance for his ties to the Communist Party.
Ultimately, it is impossible to know for sure how much help Oppenheimer provided the Soviets. However, it is clear that he did play some role in their nuclear weapons program.
It is also worth noting that Oppenheimer's help to the Soviets may have been motivated by a desire to save mankind. He believed that nuclear weapons were a necessary evil, and that they could be used to deter war. He may have thought that by helping the Soviets develop their own weapons, he could help to prevent them from being used against the United States.
Of course, this is just speculation. Oppenheimer's true motivations are unknown. However, it is clear that he believed that nuclear weapons could be used to save mankind, even if he did help the Soviets develop their own program.

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