This week, Clay Jenkinson interviews the actor John Gowans, who portrays Dr. Ward Evans of Northwestern University in the upcoming Robert Oppenheimer film. Gowans tells fascinating stories about being on the set of the film, particularly the 1954 security hearing in Washington, DC., when Oppenheimer was treated like a man of potential treason by the McCarthy-era security establishment. The director Christopher Nolan kept all the actors in a small enclosed space to create the atmosphere of tension and excruciating intimacy of the security hearing, after which Oppenheimer's security clearance was withdrawn by the United States government. Oppenheimer is one of Clay's historical characters.