here. i think there's still room for diplomacy and economic pressure to work. i think they're approaching this the right way. to me it's a little like they're acting as sandpaper. >> gordon chang, you disagree, you read the op ed by secretary tillerson and secretary mattis, they say it's time to replace this. they went on to say the u.s. is willing to negotiate with pyongyang and talk about pressuring china to the ultimate extent. you say not going to work. why? >> they talk about strategic operability and don't discuss the money laundering, supply of equipment and technology for the ballistic missile program, the supplies for the nuclear weapons program and continual sanctions busting. i think they'll read this as more of the same. what they need to see in beijing in order to 3406 in a better