where -- and many people have said it was great that it started top-down, but now it needs to be bottom-up so to speak. the working groups need to get down to see what's the art of the possible. >> that's the real trick, christiane, because it's about empowerment. our team will be empowered. they will have the imprimatur of pompeo and trump. biegun knows that he can speak for the united states. but on the north korean side, it's not the same. >> it will not be authorized to make any big promise until it gets approved straight from the top. that's why the working level talks essentially fell apart in july. >> big picture here. when the president is challenged on the definition of success here, established by his administration, complete, verifiable, irreversible denuclearization, when the president is asked, is that still the position of the united states, and his answer is, i don't want to go there. i don't want to paint myself into that corner in terms of negotiations, and then says, we want a lot to be given up but