A pro-democracy protester holds a picture of detained Chinese artist Ai Weiwei outside the China Liaison Office in Hong Kong Sunday, April 10, 2011 as they are demanding to release Ai. The sister of ... more 
A pro-democracy protester holds a picture of detained Chinese artist Ai Weiwei outside the China Liaison Office in Hong Kong Sunday, April 10, 2011 as they are demanding to release Ai. The sister of the detained Chinese artist says police have still not told the family where he is being held or why, nearly a week after he was grabbed at a Beijing airport. less 
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Associated Press | Photo By Kin Cheung
Sun, Apr 10, 2011 2:07 AM EDT