Two days after writing an Op-Ed for the TDN calling for a ban of Clenbuterol, trainer Mark Casse continued his campaign against the use of the drug in the Thoroughbred racing industry when appearing as the Green Group Guest of the Week on this week's TDN Writers' Room podcast. The Writers' Room podcast is sponsored by Keeneland. Casse said he believed that numerous trainers are abusing Clenbuterol because it can act like a steroid and is therefore a performance-enhancing drug. He called trainers that abuse Clenbuterol the "Lance Armstrongs of...