NEW YORK, NY - MAY 04: Onlookers view Chinese artist Ai Weiwei's outdoor sculpture exhibition 'Circle of Animals/Zodiac Heads' after it was unveiled at the Pulitzer Fountain at Grand Army Plaza in ... more 
NEW YORK, NY - MAY 04: Onlookers view Chinese artist Ai Weiwei's outdoor sculpture exhibition 'Circle of Animals/Zodiac Heads' after it was unveiled at the Pulitzer Fountain at Grand Army Plaza in Manhattan on May 4, 2011 in New York City. Ai Weiwei was increasingly critical about Chinese authorities and was detained by the Chinese government last month. His whereabouts are currently unknown. (Photo by Mario Tama/Getty Images) less 
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Getty Images | Photo By Mario Tama / Getty Images
Wed, May 4, 2011 3:22 PM EDT