symbolism than substance. we have had promises in the past from north korea to denuclearize. in fact, they have been promising that since 1994, and they have never delivered. there's really no sign they're going to deliver here. it's mainly about atmospherics. what north korea basically wants is a relaxation of sanctions. they want to be recognized as a nuclear power. they want legitimacy on the world stage, but they don't want to give up their nuclear weapons. they're kind of stringing along this process to get what they want without having to give up a lot. >> that's a lot of stringing along if that's the case. i mean, promising to destroy a key missile test site and also the country's primary nuclear facility only if the u.s. responds with reciprocal actions. >> no one knows what that is, but what is the range of possibility they're thinking? >> the widespread speculation is what north korea wants is a peace treaty ending the korean