How did the US government respond to Robert Oppenheimer’s opposition to developing the hydrogen bomb?

Oppenheimer opposed an accelerated effort to develop the hydrogen bomb, and his past political associations also became part of a government security review. In 1954, the review resulted in the loss of his security clearance, effectively ending his access to classified government work. So the correct choice is “He was accused of disloyalty and lost his security clearance.”

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