LOS ANGELES (REUTERS).- Dissident Chinese artist Ai Weiwei is living a heavily restricted life in Beijing after being released from detention earlier this year, but his work is speaking volumes to people in the second-largest U.S. city. Ai’s touring installation, “Circle of Animals/Zodiac Heads,” opened two weeks ago at the Los Angeles County Museum of Art, and has been introducing people here to the work of a man about whom, until recently, they may have only read about in headlines telling of his recent detention in China. The work is a series of 12 massive, 800 lb. bronze heads depicting the animals of the Chinese Zodiac. Standing among them on the museum’s sunny North Piazza, people have been posing for photos