. >> host: the book is sam quinones the true tale of the opiate epidemic. sam quinones is with us in davis up next in denver colorado who has been affected by opioids. good morning. >> caller: this is dave from denver colorado. i hear every day treating my granddaughter is an epidemic and it's heartbreaking. every day we talk about solutions putting her on this drug and that jacket on c-span they talk about how they are getting all the states with marijuana legal. overdoses that dropped 30%. you never hear mention of that. marijuana secure and they don't want to admit it. >> guest: i'm sorry to hear about your granddaughter. i know this is a story that's going on across the country and its crushing torture to so many families across the country. i think there are early signs that maybe this is one way of transitioning people off of medical marijuana. i think we have rushed through to medical marijuana a little bit and i think we need to be a little bit more humble about the potential use of this and in fact the potential, what might happen should the legali