North Korea on Wednesday appeared to rule out any resumption of dialogue with the United States, threatening to react to any US "war of aggression" with nuclear strikes and cyber warfare. The statement from the country's top military body, the National Defence Commission (NDC), came after reported moves by Washington and Pyongyang to revive long-stalled six-nation talks on denuclearisation. The NDC said recent comments from President Barack Obama had revealed that the United States' goal was to "bring down" North Korea. The statement was an apparent reaction to an interview Obama gave on January 22 in which he spoke of...