korea giving trump credit for making talks with north korea work is the tough talk payin narrator: eva-marie smoked 12,000 packs of cigarettes over 15 years. she quit and now there's a new lung cancer screening that could save her life. you stopped smoking. now start screening. no matter how much you smoked, early detection could save you. talk to your doctor or learn more at savedbythescan.org charles: the trump administration announcing this week it will allow states to require people to work or volunteer in their communities in order to receive medicaid given that they're physically able to, kentucky becoming the first state to make this happen. several other states already submitting proposals to implement the new requirements but critics say it's cruel but charlie you say this could actually help people? >> well it's called welfare reform we tried it back in the 1990s some great american mayors like rudy guiliani and a few others, it worked then. people who are getting government assistance working for that is not a bad thing. medicaid is government assistance and i don't think governme

narrator: eva-marie smoked 12,000 packs of cigarettes over 15 years.e quit and now there's a new lung cancer screening that could save her life. you stopped smoking. now start screening. no matter how much you smoked, early detection could save you. talk to your doctor or learn more at savedbythescan.org maria: what to say about bitcoin. it has been a curiosity and mystery for a while now. but only did this year did its value start to rise at a stunning rate. in october, i sat down with billionaire bond king who remains a skeptic on bitcoin. >> i know you said you're going to have this charade. >> it's a speculation. the thing is this: i -- by the way, coin had a tremendous move and there's a lot of believers in it. i got an e-mail from a 86-year-old mother. >> you uh-oh. >> in august when bitcoin was first at 450. maria: she was talking about bitcoin. >> her cousin's daughter said put all of your money in bitcoin. this is the greatest thing ever. and my mother said what do you think of that? and i said these types of advertisements come out after the