IMO the movie is making the point that Oppenheimer's security clearance review was politically motivated and essentially baseless. There's also a scene where O

IMO the movie is making the point that Oppenheimer's security clearance review was politically motivated and essentially baseless. There's also a scene where Oppenheimer demands that workers without a clear need to know be told what they are building for morale/efficiency reasons. The fact is though that the Manhattan Project had multiple Soviet spies, and Oppenheimer's policies enabled them. It's even come out more recently that Oppenheimer is mentioned as a Soviet intelligence source in a decrypted cable from the San Francisco consulate.