China and Japan agreed on Wednesday to set up talks on often contentious security issues as they seek to improve a relationship driven in recent years by a range of issues, from territorial disputes to the discharge of water from Japan's tsunami-wrecked nuclear power plant. Japanese Foreign Minister Takeshi Iwaya, on his first trip to China since assuming the post in October, sounded positive after meetings with Chinese Premier Li Qiang and Foreign Minister Wang Yi, saying the talks were very candid" and wide-ranging. I feel we were able to build a personal relationship that would lead to the future," he told reporters in the Chinese capital. Wang agreed to visit Japan next year for a high-level economic dialogue including cooperation on the environment, energy conservation and health and nursing care. Japan announced an easing of visa requirements for Chinese visitors, following China's recent decision to allow Japanese to enter without a visa. The two countries also have major ..