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 1 month 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.