Whistleblower exposes illegal marketing of opioid lollipops

In tonight's season finale of "Whistleblower," a pharmaceutical salesman goes undercover to expose his company for illegally marketing an addictive cancer drug. Host Alex Ferrer joined CBSN with a preview. "Whistleblower: Opioid Lollipops: The Case Against Cephalon" airs tonight at 8/7c on CBS.