United States President John F. Kennedy speaks at the American University commencement in Washington, D.C. on June 10, 1963.
Credit: Arnie Sachs / MediaPunch/IPX
Soldiers lie sick with Spanish influenza at Fort Riley, Kansas. The virus would claim the lives of 50 million people, 3 percent of the world's population at the time.
Psychiatrist Nassir Ghaemi explains why a mentally ill president may be just what we need, and how mania and depression have driven the triumphs and the tragedies of Lincoln, Churchill, Hitler, JFK...
