In addition to their interpersonal conflicts, Strauss had another reason to undermine Oppenheimer's credibility by revoking his security clearance: Oppenheimer was opposed to further development of the hydrogen bomb by the United States. Scott Sagan describes the loss of Oppenheimer's influence as a possible constraint upon the nuclear arms race between the US and USSR as a "broader tragedy" less clearly depicted in the film than the scientist's personal tragedy but he called the production "highly accurate" otherwise for a Hollywood film.