Fifth Amendment

The Fifth Amendment is presented as one of the constitutional grounds David Bohm invoked when he refused to cooperate with the House Committee on Un-American Activities in 1949. Its place in the narrative is specific: it marks a response to congressional questioning about political associations, while the later security case against J. Robert Oppenheimer exposes how different an administrative hearing could be from a court proceeding.

Invocation During the HUAC Investigation

In 1949, Oppenheimer encountered Bohm and Giovanni Rossi Lomanitz on Nassau Street. The two former students explained their predicament as they faced congressional investigation. Oppenheimer later described the exchange as a brief conversation in which he advised them to tell the truth. Bohm testified before the Committee in May and again in June. On the advice of his counsel, he refused to cooperate, citing both the First and Fifth Amendments. Princeton University, where he was teaching, issued a statement supporting him for the time being.

The constitutional invocation took place amid inquiries into alleged political activity among scientists. When Oppenheimer appeared before a closed executive session on June 7, the Committee questioned him about supposed Communist activity at the Radiation Laboratory and the political views of former students. He denied knowing that a Communist cell existed there and said that he had not known before the war that Joseph Weinberg was a Communist. The account places Bohm’s refusal and Oppenheimer’s answers within the same investigation, but distinguishes their responses: Bohm declined to cooperate on constitutional grounds, while Oppenheimer answered the committee’s questions.

A Constitutional Claim and an Administrative Hearing

The book later sets the political climate of the 1949 investigation beside Oppenheimer’s 1954 AEC security hearing, without suggesting that Bohm’s invocation determined that proceeding. The AEC’s case was a political indictment, the account argues, rather than the kind of narrowly framed charge likely to be tried in a court of law. Oppenheimer would be judged by a security review panel appointed by AEC chairman Lewis Strauss.

That distinction mattered in practice. Oppenheimer’s lawyer, Lloyd Garrison, was denied access to investigative materials that the board and the government’s attorney reviewed. Garrison was also refused an opportunity to attend the board’s briefing on raw FBI files. The chairman of the board allowed the government’s attorney to shape the proceedings and did not ensure that the defense received equivalent access. The book therefore presents the hearing as extrajudicial and unfair, rather than as a conventional criminal trial in which courtroom rights and procedures would govern.

Significance in the Narrative

The Fifth Amendment’s documented role here is narrow but revealing: Bohm relied on it, together with the First Amendment, to refuse cooperation with congressional questioning. The account does not specify the amendment’s legal argument in detail. Instead, it makes the invocation legible through the scene and its immediate consequence: Bohm stood on constitutional grounds, and his university publicly supported him for a time.

The contrast with Oppenheimer’s later hearing sharpens the limits of that scene. In one setting, a witness invoked constitutional protections against a congressional inquiry; in the other, Oppenheimer faced a security process that the book describes as denying a defendant the ordinary safeguards of a civil trial. The Fifth Amendment thus belongs not only to a moment of refusal but to the larger narrative’s concern with how political institutions question, judge, and constrain scientists.