Over the course of three panel sessions Tuesday during the latest Race Track Industry Symposium (RTIP) at Tucson, Arizona, more flesh was publicly added to the bones of the Horseracing Integrity and Safety Act (HISA). Nevertheless, overall specifics were pretty light on the ground--frustratingly so, for many--with an overarching message that the various medication and safety programs are very much a work in progress. Looming over proceedings was yesterday's news that Kentucky Derby winner, Medina Spirit (Protonico), suffered an apparent sudden cardiac death after a scheduled workout at Santa Anita....