cautious approach this time? >> i think expectations are lower. i think they realized they're not going to get denuclearization as they've described it in the past. and they want some kind of agreement, so they're going to agree to something less than they have been talking about earlier. >> so what could be the agreement? what would be the hope that the white house, you know, could be reaching toward or, in your view, what would be considered an accomplishment from this second summit? >> i think if there are dates, like benchmarks, where by a certain date north korea commits to opening up parts of its country as further extension, examination. frankly we need entry, too, of north korea's missile capability. the north koreans haven't given us that. just an inventory of what they have. i'd like to see that.