@CNN: North Korea may be taking some steps to keep its promises, but they will likely come at great cost to the United States | @sam_vinograd for @CNNopinion https://t.co/vRW4Hpq2zH https://t.co/52aOVwqh9B

@CNN: North Korea may be taking some steps to keep its promises, but they will likely come at great cost to the United States | @sam_vinograd for @CNNopinion https://t.co/vRW4Hpq2zH https://t.co/52aOVwqh9B