NETTUNO, Italy There is a piece of land along the coast an hour south of Rome that is a shrine to America. It is a lovely piece of land, well designed and well maintained, that spreads out over nearly 80 acres. It is big enough that the men who do such things need seven days to cut its grass. It is the Sicily-Rome American Cemetery and Memorial. Buried here are 7,862 Americans who died in combat in this country during World War II. Each has a marble headstone that is cleaned twice a year, by hand, with pumice stone and...