When CBS News brought Dwight Eisenhower back to Normandy for the 20th anniversary of the D-Day landings in 1964, you might have expected the former commander of Allied forces to conclude with a triumphal comment. Instead, CBS captured an anguished Eisenhower against the backdrop of crosses at the U.S. cemetery at St. Laurent, ruminating: “We must find some way . . . to gain an eternal peace for this world.”