Now this, we can all agree, is just what a GI Longines Breeders' Cup Classic should look like. Three of the first four in the Derby, albeit not the one that may ultimately be credited as winner. And besides resolving the questions left open by that processional race at Churchill, they must also pick up the gauntlet thrown down by an older horse whose plain running style should leave no stone of merit unturned. A race, in other words, commensurate with the biggest prize of the American Turf, with the...