In part two, Robert continues with Joe Kassabian to tell the sordid tale of Lavrentiy Beria, the head of Stalin's secret police, prolific sex criminal and ethnic cleanser, and nuclear weapon entrepreneur.

Part One: Radovan Karadžić: The Genocidal Dictator Who Became a New-Age Guru
1:13:28

Part Four: Francis Galton: Inventor of Eugenics
53:28

Part Three: Francis Galton: Inventor of Eugenics
1:16:39