A woman was released unharmed Wednesday morning after being held hostage for 18 hours by a man at a transport company's headquarters in the western Japan prefecture of Shimane, police said.Kaisei Nakao, who had wielded a bladed implement, was arrested on the spot for alleged criminal confinement 10 minutes after the police persuaded him to set the woman free.The 23-year-old hostage-taker walked in the front door of the Ueda Cold Corp. office in the city of Izumo the previous day around 2:20 p.m., saying that he wanted to barricade himself in and demanding to see the president, the police sa…READ FULL ARTICLE