Youhuang Xiang, a post-doctoral researcher and J-1 visa holder from China was charged with smuggling Escherichia coli (E. coli) into the U.S. and making false statements about it.

This is yet another example of a researcher from China - given the privilege to work at a U.S.…

— FBI Director Kash Patel (@FBIDirectorKash) December 19, 2025