4 Min Read SYDNEY (Reuters) -High numbers of Chinese students at Australian universities have created an environment of self-censorship with lecturers avoiding criticism of Beijing and Chinese students staying silent in fear of harassment, Human Rights Watch said. FILE PHOTO: A computer mouse is illuminated by a projection of a Chinese flag in this photo illustration October 1, 2013. REUTERS/Tim Wimborne/File Photo Some parents in mainland China had been questioned by Chinese police about the activities of students in Australia and Hong Kong police had questioned a returning student about pro-democracy activities, the group said in a report released on Wednesday.