The announcement that came last week that the United States Anti-Doping Agency (USADA) has bowed out and will not become the enforcement agency for the Horseracing Integrity and Safety Authority couldn't have been worse news for the sport. It was a lump of coal in the stocking at Christmastime. Thanks to the passage of the Horseracing Integrity and Safety Act (HISA) racing finally seemed ready to clean up a game where cheating trainers and the use of performance-enhancing drugs is a serious problem. USADA was not only the best choice...