Appearing as the Green Group Guest of the Week on this week's TDN Writers' Room podcast presented by Keeneland, Hall of Fame trainer Mark Casse grew emotional when the subject of the rash of fatalities that have plagued the sport this year came up. Believing that the industry has not done all that it can to help alleviate the situation and that tracks must embrace a return to synthetic surfaces, Casse admitted that his outlook on his profession and the sport has changed for the worse. "This is sad to...