North Korea turns to 'old workhorse' rocket to repeat past success

By Jack Kim and David Brunnstrom SEOUL/WASHINGTON (Reuters) - North Korea's weekend rocket launch repeated earlier success rather than breaking new ground, using a nearly identical design from a 2012 launch, experts said, adding the reclusive country probably remained years from building a long-range nuclear missile. South Korea and the United States say Sunday's launch was a long-range missile test that violated U.N. Security Council resolutions barring the North from using ballistic missile te