job he's doing and what seems like an outright policy shift to the secretary of state being open to a possibility of direct negotiations with north korea. >> i think all of this is very carefully calculated. i heard from an administration official that all of these public messages from president donald trump's specific input. they want to leave a very narrow path for him to denuclearizing via talks and to signal to china that this time we are serious. we might take military action. so we know you promised the obama administration several times in the past that you would shut down banks or shut down north korea's access to business to put pressure on them, but you haven't. this time we're serious, so you've got to get serious about this. >> it's interesting. you know, kimberly says this is a strategy and it may very well be. we could learn from rex tillerson exactly where the