On April 12, 1954, the nation was astonished to learn that scientist J. Robert Oppenheimer faced charges of violating national security. Why had the charismatic leader of the Manhattan Project— the man who led the team that developed the atomic bomb that ended World War II—been cast into overnight disgrace? In this riveting narrative, bestselling author Priscilla J. McMillan draws on newly declassified U.S. government documents and materials from...