A third Chinese national is accused of smuggling biological materials into the U.S. for work at a University of Michigan laboratory. Chengxuan Han, of the People's Republic of China, is charged with smuggling goods into the U.

Chengxuan Han accused by federal government of sending four packages to the U.S. from China containing concealed material related to roundworms.

The Department of Justice (DOJ) announced on Monday that it has apprehended a University of Michigan (U-M) scholar from the