Washington's chief negotiator with North Korea in the early 1990s says working-level officials of North Korea and the U.S. need to meet "pretty quickly" to maintain the momentum for dialogue. <br />Robert Gallucci, the former Special Envoy for the U.S. State Department, made the remark in an interview with 'The Hill' on Sunday,... adding there isn't much time. <br />He said it's very hard to get everything settled for the leaders so they can simply come in and sign what's already been negotiated. <br />He added it never would've happened that way with the North Koreans before, and it didn't happen that way this time either. <br />