THE CANNABIS QUESTION: NOVA

Widescreen. A huge social experiment is underway. Fifty-five million Americans say they currently use cannabis, and that number is expected to grow as voters push for legalization in more and more states. NOVA investigates the story of cannabis in the U.S., from the criminalization that disproportionally harmed communities of color to the latest medical understanding of the plant. English SDH. 55 minutes.