Bill Rood didn't grow up around horses but once he came in contact with "God's kindest creatures," he knew he wanted to care for them as a veterinarian. Along with partner Thomas Riddle, he eventually he turned a "box" on a farm into Rood & Riddle Equine Hospital, a world-renowned facility with locations in Lexington, Ky., Saratoga Springs, NY., and Wellington, Fla. In today's edition of Around the Track, Dr. Rood tells the story of how Rood & Riddle came to be and evolve, the tale of a broodmare and her remarkable mating with Secretariat, and he discusses the past and future of equine medicine.  Listen in...