In a long gone era, Franklin Delano Roosevelt had some big secrets that could have wrecked his political career. The unrevealed scope of his polio disability was one, of course, but just as significant was the complex architecture of his marriage, including the women close to him who were, to a significant extent, surrogate wives. This was a big, untold story. If the public had known, it seems unlikely FDR would ever have become president. And, instead of having this extraordinary man in the White House through 12 of America's most perilous years, the nation could have been led by men in the mold of Calvin Coolidge and Herbert Hoover -- men with greater moral rectitude and placid marriages but parsimonious, niggling hearts.