DEL MAR, CA - Like clockwork, the call over the radio went out promptly at 2:45 p.m. Pacific Time on Wednesday afternoon. "Breeders' Cup Investigators this is the 48-hour warning for the Juvenile Turf Sprint, please be aware," said the voice. "Again, that is 48 hours until the Juvenile Turf Sprint." Repeated by the day shift control room manager Tyler Durand for each of the four subsequent races on the Friday card and the next afternoon for the nine races carded for Saturday's slate, the announcements are a way to...