Rosenbergs

The Rosenbergs stole top-secret information about the U.S.'s atomic bomb and passed it to the Soviets at the onset of the Cold War. They were eventually caught and executed by electric chair.

While discussing his past with Jack Bauer, Harvey Kling said he was unable to find work because he "torpedoed the biggest atom spy case since the Rosenbergs."

Background information and notes

 * Kling was referring to Julius and Ethel Rosenberg, who were executed in 1953 for passing information about the U.S.'s atomic bomb to the Soviet Union.