Global anger over N. Korea nuclear test as UN set to meet

World powers expressed outrage Friday after North Korea claimed it had successfully tested a nuclear warhead that could be mounted on a missile, prompting urgent UN talks and calls for new sanctions. South Korea, the United States, Japan, Russia and China all condemned the blast at the Punggye-ri nuclear site, the North's fifth and most powerful yet at 10 kilotons. At the United Nations, Secretary-General Ban Ki-moon urged the Security Council -- set to discuss the issue at 1900 GMT -- to take "