Japan has asked China to bolster security to ensure the safety of its nationals in the country on the upcoming 87th anniversary of the 1937 massacre in Nanjing, Japanese government sources said Wednesday.The request to Beijing, made by Japanese diplomatic establishments in China in the run-up to ceremonies to mark the anniversary on Friday, follows stabbing incidents in Suzhou and Shenzhen earlier this year, the sources said.In June, a Japanese mother and her child were injured in Suzhou. A Japanese schoolboy was also killed in Shenzhen in September. Under such circumstances, Japanese schoo…READ FULL ARTICLE