Americans have more depth than anyone at pool, but gold harder to come by

NANTERRE, France — No one can match America's depth at the pool.   That said, claiming the top step on the Olympic medal podium is no longer a given for U.S. swimmers.   Nine days of thrilling competition at La Defense Arena wrapped up Sunday night with the Americans barely pulling out the lead in the gold medal standings thanks to a victory in the last race.   The U.S. finished with eight golds, its fewest since the 1988 Seoul Games and one ahead of its biggest rival, Australia.   “It’s...