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FOR A FEW YEARS after World War II, scientists had been regarded as a new class of intellectuals, members of a public-policy priesthood who might legitimately offer expertise not only as scientists but as public philosophers. With Oppenheimer’s defrocking, scientists knew that in the future they could serve the state only as experts on narrow scientific issues. As the sociologist Daniel Bell later observed, Oppenheimer’s ordeal signified that the postwar “messianic role of the scientists” was now at an end. Scientists working within the system could not dissent from government policy, as Oppenheimer had done by writing his 1953 Foreign A fairs essay, and still expect to serve on government advisory boards. The trial thus represented a watershed in the relations of the scientist to the government. The narrowest vision of how American scientists should serve their country had triumphed.
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