In this photo provided by the Department of Defense, U.S. Defense Secretary Robert Gates delivers a speech during a meeting with a group of American and South Korean troops at the U.S. military headquarters 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, U.S. Defense Secretary Robert Gates delivers a speech during a meeting with a group of American and South Korean troops at the U.S. military headquarters 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.