Draft rules for the Horseracing Integrity and Safety Act (HISA) were unveiled Thursday morning, auguring fundamental shifts to the way the industry is policed, including a markedly more stringent approach to medication violation penalties. Far from concrete, these draft rules are subject to the red pen. Nevertheless, as currently written, they raise notable differences to the working status quo. Broadly, the draft rules take a binary approach to drug testing, breaking medications down into primary and secondary categories. A primary substance is one that is always prohibited, while a secondary...