In New York City’s Chinatown, the exotic and the practical attract tourists and locals — all looking for a piece of China on every corner.  Gao once worked in China's Public Security Ministry, conducting criminal investigations, but after participating in protests against the Chinese government in Tiananmen Square in 1989 he fled to the U.  MIKE GAO: FBI even has like a long list for those people who support or work on behalf of Chinese government, even only in Flushing area