The Japanese and U.S. governments are planning to jointly monitor e-commerce giant Rakuten Group Inc. for fear of customer data falling into the hands of Chinese authorities, sources with knowledge of the matter said Tuesday.A group company of Chinese tech giant Tencent Holdings Ltd. has become Rakuten's major shareholder with a 3.65 percent stake, apparently raising alarm among Japanese and U.S. authorities for national security reasons.Based on a law on foreign investment, the Japanese government is expected to conduct interviews regularly with Rakuten, and share the information with the …READ FULL ARTICLE