Trekking through mud and rocks in Japan's humid Okinawan jungle, Takamatsu Gushiken reached a slope of ground where human remains have lain forgotten since World War II. The 72-year-old said a brief prayer and lifted a makeshift protective covering, exposing half-buried bones believed to be those of a young Japanese soldier.The plan has sparked anger among Gushiken and others, who say it will disturb the remains of World War II casualties, likely killed by Americans.