In a White House ceremony celebrating this stamp, President Harry Truman declared, “The greatest sermon that ever was preached is right here on this stamp.” It refers to an incident in which two ministers, a priest and rabbi gave up their life preservers as the U.S. Dorchester sank after being hit by a German torpedo in 1942.  The story of their heroism hit a nerve in part because it fit a new message from the U.S. government – that one of the main things that distinguishes us from the Nazis and the Communists is religious freedom.