A Chinese policeman stands in front of fellow officers confronting residents who gathered outside the government office in Zhejiang province's Ningbo city on Sunday, Oct. 28, 2012, to protest the proposed expansion of a petrochemical factory. (AP Photo/Ng Han Guan)

Photo by: Ng Han Guan

A Chinese policeman stands in front of fellow officers confronting residents who gathered outside the government office in Zhejiang province's Ningbo city on Sunday, Oct. 28, 2012, to protest the proposed expansion of a petrochemical factory. (AP Photo/Ng Han Guan)