广东举牌抗议朝鲜核试爆 刘远东拘留逾期疑被捕 (Guangdong Rights Defender Liu Yuandong Detained for Protesting N Korea Nuclear Test) Radio Free Asia, April 02, 2013 http://www.rfa.org/mandarin/yataibaodao/junshiwaijiao/h-04022013121119.html