" As evidence, he dug up those flimsy charges the army and FBI had investigated ten years before: that Oppenheimer was secretly a Communist and maybe even a Soviet spy. Strauss devised a plan for taking Oppenheimer down. He’d have the AEC strip Oppenheimer of his security clearance. Without this clearance, Oppenheimer would no longer be allowed to see secret information on the latest atomic weapons research. He couldn’t advise the government, because he wouldn’t know what was going on. Oppenheimer had two options: demand a hearing, or simply walk away. He knew by now that nothing he did or said could stop the arms race. But there was a principle involved—he couldn’t let the charges against him go unchallenged. “This course of action,” he told Strauss, “would mean that I accept and concur in the view that I am not fit to serve this government that I have now served for some twelve years. This I cannot do.” Oppenheimer got his hearing, but it was bogus from the start. Strauss personally picked the panel of judges. The FBI tapped Oppenheimer’s phones and listened in on conversations between him and his attorney. This illegally gathered information was used against Oppenheimer in court. "

― Steve Sheinkin , Bomb: The Race to Build—and Steal—the World's Most Dangerous Weapon