Sun 06 Jun 2007US welcomes North Korea moveTalks and fuel aid aimed at coaxing North Korea to give up its nuclear weapons programme could move ahead in coming weeks, the US nuclear envoy said today, welcoming Pyongyang's invitation to UN inspectors.The chief American negotiator in six-nation nuclear talks, Assistant Secretary of State Chris Hill, told reporters in the Mongolian capital that North Korea's invitation to the United Nations' atomic watchdog to send a delegation to Pyongyang opened the way to fresh momentum in the negotiations.