North Korean leader Kim Jong Un has overseen firing drills involving "super-large multiple rocket launchers," the country's state-run media said Tuesday, a day after Tokyo and Seoul detected the launch by Pyongyang of short-range ballistic missiles toward the Sea of Japan.North Korea's official newspaper, Rodong Sinmun, ran a photo showing six rockets being fired simultaneously Monday.The North Korean military also conducted a test to simulate the midair explosion of a shell from a super-large multiple rocket launcher at a preset altitude, the official Korean Central News Agency said.Kim sa…READ FULL ARTICLE