Visiting U.N. General Assembly President Jean Ping leaves headquarters of South Korea's Foreign Ministry in Seoul. Visiting U.N. General Assembly President Jean Ping leaves the headquarters of South Korea's Foreign Ministry after a news conference in Seoul November 25, 2004. North Korea wants a change in the political atmosphere before it will attend talks on its nuclear plans and is asking the United States to send a signal to that effect, Ping said on Thursday. REUTERS/Lee Jae-Won