Clifford Hart , the U.S. envoy for six-party talks aimed at North Korean denuclearization , met with North Korea 's deputy U.N. ambassador , Han Song-ryol , in mid March , according to the source . Nothing came of New York channel days before North Korea unleashed missiles . Source says as part of regular back channel monitoring . The Bush administration called for Americans to avoid provocative actions . ` ` New York channel '' set up for U.S. , North Korea to exchange information , messages .
Nothing came of New York channel days before North Korea unleashed missiles . Source says as part of regular back channel monitoring . The Bush administration called for Americans to avoid provocative actions . ` ` New York channel '' set up for U.S. , North Korea to exchange information , messages .