Last month, 60 Minutes correspondent Bob Simon told the remarkable story of Sir Nicholas Winton, a stockbroker in London who saved 669 Czech children-- most of them Jewish--from the Nazis during WWII. England took in almost all of the 669 children. Winton, now 104 years old, told 60 Minutes he had made a desperate plea for help to the United States back in 1939. He said he had written a letter to President Franklin D. Roosevelt, describing the plight of the Czech children and asking that America grant refuge to a number of them. "But the Americans wouldn´t take any,