To coincide with the release of its anti-doping guidelines for the Horseracing Integrity and Safety Act, the U.S. Anti-Doping Agency's CEO Travis Tygart and Equine Program Director Tessa Muir joined the TDN Writers' Room presented by Keeneland Wednesday evening. Sitting down for an expansive, near hour-long interview as the Green Group Guests of the Week, Tygart and Muir broke down all facets of the potential uniform medication policies and regulations, talked about the varying working relationships they've developed with state racing commissions, elucidated how testing and doping investigations would work under HISA...