In this Jan. 28, 2013 photo, Chinese-born U.S. scientist Hu Zhicheng stands at the waterfront promenade along the Huangpu River in Shanghai, China. For 17 months he was jailed while pol

 

              In this Jan. 28, 2013 photo, Chinese-born U.S. scientist Hu Zhicheng stands at the waterfront promenade along the Huangpu River in Shanghai, China. For 17 months he was jailed while pol
In this Jan. 28, 2013 photo, Chinese-born U.S. scientist Hu Zhicheng stands at the waterfront promenade along the Huangpu River in Shanghai, China. For 17 months he was jailed while police investigated accusations from a business rival. During that time, he and his family say, he was allowed no contact with his wife or children other than the occasional letter. (AP Photo/Eugene Hoshiko)