Nov. 6 (UPI) -- Three Chinese researchers at the University of Michigan were charged with conspiracy to smuggle biological materials into the United States, the Department of Justice said. The three, Xu Bai, 28; Fengfan Zhang, 27; and Zhiyong Zhang, 30, were research scholars with J-1 visas who were working at the UM laboratory of Xianzhong Xu, commonly known as the Shawn Xu laboratory, according to a press release . In 2024 and 2025, Bai and F. Zhang allegedly received shipments containing