June 13 (UPI) -- North Korea successfully launched a 5,000-ton destroyer that was damaged during its first launch attempt last month, state-run media reported Friday, with leader Kim Jong Un in attendance and vowing to build two more warships next year. The launch ceremony was held Thursday at the Rajin Shipyard, the official Korean Central News Agency reported. Kim witnessed the destroyer's botched launch on May 21, and called it a "criminal act caused by absolute carelessness,