Following up on my post on the subject, I had the chance to speak with Colin O’Keefe of LXBN regarding Casias v. Wal-Mart Stores, in which the Sixth Circuit Court of Appeals ruled that Wal-Mart’s firing of an employee for medicinal marijuana use is lawful. In the brief interview I explain the background of the case, why the court arrived at the ruling it did and what lessons it holds for employers.