This groundbreaking Cold War history reveals the government conspiracy to bring down America's most famous scientist. On April 12, 1954, the nation was astonished to learn that J. Robert Oppenheimer was facing charges of violating national security. Could the man who led the effort to build the atom bomb really be a traitor? In this riveting book, Priscilla J. McMillan draws on newly declassified U.S. government documents and materials from Russia, as well as in-depth interviews, to expose the conspiracy that destroyed the director of the Manhattan Project. This meticulous narrative recreates the fraught years from 1949 to 1955 when Oppenheimer and a group of liberal scientists tried to head off the cabal of air force officials, anti-Communist politicians, and rival scientists, who were trying to seize control of U.S. policy and build ever more deadly nuclear weapons. Retelling the story of Oppenheimer's trial, which took place in utmost secrecy, she describes how the government made up its own rules and violated many protections of the rule of law. McMilliam also argues that the effort to discredit Oppenheimer, occurring at the height of the McCarthy era and sanctioned by a misinformed President Eisenhower, was a watershed in the Cold War, poisoning American politics for decades and creating dangers that haunt us today.