lordship of u.s. ambassador to the u.n. nikki haley. those sanctions packages, yes, they're not immediate, but they do have an effect in further isolating north korea and putting more economic pressure on them. so look, this is good news in the last 24 hours that the north korean leader is at least willing to begin negotiating with south korea to reduce tensions to get through the olympics. it's obviously a global event, has global security ramifications, global economic ramifications. but keep in mind the preconditions that the north koreans are throwing out there, they're saying, look, the u.s. has to stop joint military operations with south korea. that may be a good idea to put that off past the olympics, but we don't need to separate the united states from south korea militarily. that would be -- that would strengthen the north korean leader's hand when in fact the united states supporting south korea militarily and diplomatically is of particular importance. >> that latest round of sanctions focusing on oil and minerals and how long workers from north korea are able to work overseas. jennifer rubin, let me ask you