On April 9, 1945, 65 years ago today, just a few weeks before an allied offensive brought Germany to its knees and ended World War II in Europe, a young, mild-mannered Lutheran theologian was hanged by the Nazis in Flossenburg Concentration Camp. His crime ... conspiring to assassinate Adolf Hitler. Dietrich Bonhoeffer, a theological genius of the 20th century, is now emerging as a war hero, martyr and spy. "What is so amazing about the story of Bonhoeffer is that he puts a completely different spin for us as Americans on World War II," says Eric Metaxas, author of "Bonhoeffer:...