Two iconic personalities of the 20th century have died: As John mentioned, Edward Teller, father of the H-bomb, and German filmmaker Leni Riefenstahl. The accomplishments both were best known for — the hydrogen bomb for Teller, the Nazi propaganda film “Triumph of the Will” for Riefenstahl — provoke deep philosophical and political controversy, even today. Teller’s invention arguably saved the West from communist takeover, or at least prevented a world war; but that device also placed into mankind’s hands the ability to incinerate the entire human race. Riefenstahl’s film of the 1934 Nazi party congress at Nuremberg is one of the most formally beautiful and visually moving films ever made — yet it was beauty given over to the service of absolute evil. Two souls whose life’s work contain extreme moral paradoxes, paradoxes that helped define man’s bloodiest century.