A Chinese scientist, along with his partner, has been accused of unlawfully bringing a dangerous toxin secretly into the United States. The charges were announced by federal authorities this week, highlighting the severity of this alleged security breach. Both individuals, who have ties to academia, allegedly transported a harmful fungus within U.S. borders. This specific strain of fungus, recognized as Fusarium graminearum, poses a threat to vital crops such as wheat, barley, maize, and rice. Furthermore, according to the FBI, this pathogen can also potentially harm livestock and humans.
The FBI has raised concerns, suggesting that the fungus could be weaponized as part of agroterrorism efforts. The accused are Yunqing Jian and Zunyong Liu, who are now facing multiple charges, including conspiracy, smuggling, making false statements, and visa fraud.
The U.S. Attorney’s Office has expressed deep concerns over these allegations. As one of the defendants awaited a court hearing, their legal counsel refrained from commenting on the situation. Detailed inquiries by the FBI revealed that Liu was intercepted at the Detroit airport the previous year. He was found carrying red plant material in his backpack, which prompted closer scrutiny by authorities.
Initially, Liu denied having any knowledge about the samples. However, he later indicated that the material was intended for research at a University of Michigan laboratory where Jian was employed and where he himself had previously worked. Investigations also led to the discovery of a scientific article on Liu’s phone named “Plant-Pathogen Warfare under Changing Climate Conditions,” pointing towards potentially sinister intentions.
Prior to his attempt to enter the U.S., Liu had an exchange with Jian, which authorities have flagged as potentially incriminating. Their conversation suggested coordination concerning the handling of the pathogen, raising further concerns about their intentions.
In early 2024, during an interrogation on campus, Jian denied any involvement with the pathogen. However, the investigation revealed evidence to the contrary, including messages suggesting she was already managing the Fusarium graminearum at their workplace. This was particularly troubling as the university lacked the necessary permits to legally handle such a pathogen. The situation poses an additional diplomatic challenge due to the absence of an extradition treaty between the U.S. and China, complicating any potential legal actions against Liu unless he returns to U.S. soil.