June 7 (UPI) -- While American racing attention was riveted to Saratoga during the Belmont Festival weekend, much of the rest of the world had eyes on Epsom Downs for the Derby and the Oaks or on Tokyo Racecourse, where Japanese milers tackled the Grade 1 Yasuda Kinen. Of course, Derby was the main course. Aidan O'Brien was a solid favorite to saddle his 12th Derby winner and fourth in a row, Saturday at Epsom Downs. And he did, but not without some surprises and a dash of controversy. O'Brien