Chinese President Xi Jinping may postpone an upcoming state visit to Japan to deal with a coronavirus outbreak that has killed more than 400 in his country, diplomatic sources said Tuesday.According to the sources, a preparatory meeting between officials from the countries scheduled for later this month in Beijing and a separate meeting on maritime issues have both been pushed back as China focuses on containing the epidemic.The delays bode ill for Xi's visit, which had been expected to take place around early April and would entail a summit with Prime Minister Shinzo Abe as well as an audi…READ FULL ARTICLE