Prevent people from abusing drugs in the first place. if they don't start, they won't have a problem. if they do start, it's awfully tough to get off. >> unfortunately this topic hits home for millions of americans, but also for our next guest nashville mayor megan berry who just returned yesterday after losing her 22-year-old son max to a drug overdose. first of all, deep condolences to you for your son max. i can't imagine what you're going through. please tell us about max. >> we don't want max's death to define his life, but we also have to keep this from happening. this as it relates to o...