No Wall Too HighIt was one of the greatest prison breaks of all time, during one of the worst totalitarian tragedies of the 20th century. Xu Hongci was an ordinary medical student when he was incarcerated under Maos regime and forced to spend years of his youth in some of Chinas most brutal labour camps. Three times he tried to escape. And three times he failed. But, determined, he eventually broke free, travelling the length of China, across the Gobi desert, and