Why an expert says the US needs to invest 'tens or hundreds of billions' to fight opioid epidemic

Painkiller overdoses are killing 116 people, every day. That’s a higher death count than motor vehicle accidents. And with dealers mixing often deadly street doses, they’re using bitcoin payment to cover their tracks. CNBC's "On the Money" asks the co-director of the Johns Hopkins Center for Drug Safety what needs to be done to reverse this growing public health threat.