On Friday, FBI Director Kash Patel revealed that a post-doctoral researcher in the United States, currently on a visa, faces charges for allegedly smuggling Escherichia coli (E. coli) into the country and providing false information about the act.

Patel identified the individual as Youhuang Xiang, though he withheld the name of the university associated with the case.

Patel commented on the situation, stating, “This incident illustrates another case where a researcher from China, who was given the opportunity to work at a U.S. academic institution, allegedly engaged in an illegal scheme to bypass U.S. regulations by receiving biological materials concealed in a shipment from China.”

He further warned, “E. coli and similar biological substances, if not properly regulated, have the potential to cause severe harm to U.S. agriculture and result in substantial economic losses.”

Praising the efforts of the FBI’s Indianapolis and Chicago field offices, Patel also acknowledged the role of U.S. Customs and Border Protection (CBP) in the investigation. He issued an advisory to universities, urging them to remain “alert to this emerging trend.”

Patel emphasized the importance of compliance, stating, “Universities must ensure their researchers understand the legal protocols for acquiring a license to import or export approved biological materials, and adherence to these protocols is mandatory.”

This is not the first time visa holders have been busted for allegedly smuggling materials for research since the Trump administration began its immigration crackdown in January 2025.

This is a developing story. Please check back for updates.