On that June afternoon nearly 50 years ago, Dave Johnson was there to witness one of the most memorable moments in the history of horse racing. As the NYRA track announcer, he called Secretariat's win in the GI Belmont S., an event he, and anyone who was there that day, will never forget. To share his memories, Johnson joined the team for this week's TDN Writers' Room podcast presented by Keeneland. Johnson was this week's Green Group Guest of the Week. He recalled that Secretariat came around at the perfect...