A photographed image of a unified university entrance exam question may have been leaked via a video calling app during testing earlier this month, prompting police to investigate the incident as a case of suspected cheating, sources close to the matter said Wednesday.The incident came to light after a man who identified himself as a University of Tokyo student notified exam authorities that he had received the image of the question on a world history test via the Skype internet telephony app when the examination took place on Jan. 15, the sources said.According to the man, he was asked to …READ FULL ARTICLE