Treating kids and elderly with cannabis in Israel

Twenty years ago, Israeli scientist Raphael Mechoulam was the first to discover that giving cannabis oil to kids with cancer resulted in easing their physical and emotional pain. Israel now allows children and adults to consume cannabis in medical institutions; including in government-run hospitals and nursing homes. CNBC's Dina Gusovsky takes us back to where it all started and shows how the past could shape the future when it comes to medical marijuana in the U.S.