History's 9 Most Insane Rulers

Madness and Power.

Can the insane rule? Can insanity be a leadership quality? Scott Rank says yes (well, sometimes) in this fascinating look at nine of history's most notorious rulers, from the Roman emperor Caligula to the North Korean Communist dictator Kim Jong-il.

Rank paints intimate portraits of these deeply flawed but powerful men, examining the role that madness played in their lives, the repercussions of their madness on history, and what their madness can tell us about the times i...