This undated photo provided by the China Aid Association shows blind Chinese legal activist Chen Guangchen in Shandong province, China. Chen, a well-known dissident who angered authorities in rural China by exposing forced abortions, made a surprise escape from house arrest on April 22, 2012, into what activists say is the protection of U.S. diplomats in Beijing, posing a delicate diplomatic crisis for both governments. (AP Photo/www.ChinaAid.org)