North Korea earlier this week tested an underwater nuclear attack drone designed to generate tsunami to destroy enemy ships and ports, with the target area, located further away than in a previous test, successfully reached, the country's state-run media said Saturday.The Haeil-2 drone traveled on an elliptical, figure eight-shaped course stretching 1,000 kilometers off North Korea's eastern coast for over 71 hours during the test from Tuesday to Friday, the Korean Central News Agency reported. The claimed range of the drone would put Japanese coastal areas on the Sea of Japan within reach…READ FULL ARTICLE