In this June 9, 2012 file photo, Chinese journalist Gao Yu attends an opening ceremony of Chinese artist Liu Xia&amp;#39;s photo exhibition in Hong Kong. A court in Beijing on Friday, April 17, 2015 sentenced Gao to seven years in prison for leaking a top Communist Party policy document, the latest step in what is seen as a widening clampdown on free speech and civil liberties. (AP Photo/Kin Cheung, File)
