Secrets, Lies and Atomic Spies

NOVA reveals evidence that in the 1940s Soviet spies penetrated America's deepest secrets, including the Manhattan Project. By cracking the code of Soviet diplomatic cables, the FBI was able to hunt down 'atom spies' such as Klaus Kuchs and Julius Rosenberg. But the true master spy, a physicist named Ted Hall, got away, and his story is presented for the first time by NOVA.