In this photo provided by the Department of Defense, South Korean Prime Minister Chung Un-chan, right, shakes hands with U.S. Defense Secretary Robert Gates during a meeting  in Seoul, South Korea, Wednesday, Oct. 21, 2009. Gates said Wednesday the United States will never accept a North Korea with atomic bombs, saying the communist regime poses threats "even more lethal and destabilizing" than before. AP Photo logo AP Photo 28 months ago

In this photo provided by the Department of Defense, South Korean Prime Minister Chung Un-chan, right, shakes hands with U.S. Defense Secretary Robert Gates during a meeting in Seoul, South Korea, Wednesday, Oct. 21, 2009. Gates said Wednesday the United States will never accept a North Korea with atomic bombs, saying the communist regime poses threats "even more lethal and destabilizing" than before.