China on Friday acknowledged for the first time that it is communicating with the United States about the case of Ling Wancheng, the brother of a one-time senior aide to then President Hu Jintao, in a case that could complicate ties.
Authorities have been tight-lipped about revealing any information about the man, Ling Wancheng, who is in the United States, sources have told Reuters.
China has demanded his return, the New York Times had earlier reported, in a case that could strain Sino-U.S. ties if he were to seek to defect.
