North Korea put its rocket units on standby on Friday to attack US military bases in South Korea and the Pacific, after the United States flew two nuclear-capable stealth bombers over the Korean peninsula in a rare show of force. North Korean leader Kim Jong-un signed off on the order at a midnight meeting of top generals and "judged the time has come to settle accounts with the US imperialists in view of the prevailing situation", the official KCNA news agency said. On Thursday, the United States flew two radar-evading B-2 Spirit bombers on practice runs over South Korea, responding...