In this Jan. 28, 2013 photo, Chinese-born U.S. scientist Hu Zhicheng sits at the waterfront promenade along the Huangpu River in Shanghai, China. In November 2008, he returned to his na

 

              In this Jan. 28, 2013 photo, Chinese-born U.S. scientist Hu Zhicheng sits at the waterfront promenade along the Huangpu River in Shanghai, China. In November 2008, he returned to his na
In this Jan. 28, 2013 photo, Chinese-born U.S. scientist Hu Zhicheng sits at the waterfront promenade along the Huangpu River in Shanghai, China. In November 2008, he returned to his native land for what he thought would be a brief visit. Later that month, the day he was supposed to fly back to his family in California, Hu was arrested as a result of of accusations from a business rival. Even though authorities dropped all charges, he still isn't home because of a bizarre set of legal circumstances that prohibit him from leaving China. (AP Photo/Eugene Hoshiko)