They'll run the Belmont Stakes next Saturday, and as we lead up to the event, there will be more conversation about all of the unpleasant things we've been talking about lately: syringes in barns, drugs and bans, guilt or innocence, crime and punishment. We'll be asked to justify our existence, the necessity of our sport and our livelihood. What purpose do we really serve, anyway, they'll ask? Like everyone else in the sport, I think we serve a purpose. But I also think we have the potential to serve a...