regular services between yangsan. north korean residents of japan used the vessel for trips to its country. barred from entering the ports after missiles were shot into the sea of japan in july 2006. some say north korea will test run the off-duty ship close to the chinese border and the resort of malkungan. hoping the route will attract chinese tourists as there are no signs of japan lifting its ban. >>> one of the world's largest tidal plants resumed full operation in south korea on monday. the 254 megawatt plant will use the tides. the facility is located facing the yellow sea. ten generators have been placed on the bank that separates the sea and lake. at the opening ceremony on monday, the president said the plant marked the start of a new era of natural energy in south korea. south korea plans to build four more tidal plants but some environmental groups are opposed to the plant arguing it may effect the ecosystem by changing the flow of sea water. the japanese government plans to end early the power cutting req