Chinese Scientists Charged in Michigan for Smuggling Toxic Fungus

Two Chinese nationals have been charged in Michigan following a federal investigation into the alleged smuggling of a toxic fungus into the United States. The FBI reports that Yunqing Jian, 33, and Zunyong Liu, 34, face multiple charges including conspiracy, smuggling, making false statements, and visa fraud. U.S. Attorney Jerome Gorgon Jr. described the case as raising significant national security concerns.

According to federal authorities, Liu attempted to enter the U.S. in July 2024 with samples of Fusarium graminearum, a pathogen that can damage wheat, barley, maize, and rice crops while potentially causing illness in livestock and humans. Liu was initially denied entry at Detroit airport after officials discovered plant material in his backpack. The FBI stated that a scientific journal describes this fungus as a "potential agroterrorism weapon."

Investigators allege that Jian, who worked at a University of Michigan laboratory where Liu had previously been employed, was collaborating with Liu on research involving the pathogen. Digital evidence recovered by authorities reportedly included messages between the two discussing their work and a scientific article on Liu's phone titled "Plant-Pathogen Warfare under Changing Climate Conditions." The FBI claims the university does not possess federal permits to handle this particular fungus.

Jian appeared in court and remains in custody pending a bond hearing. The FBI reported finding a signed statement on her phone expressing support for the Communist Party of China. Liu, who was sent back to China after being denied entry in 2024, is unlikely to face arrest unless he returns to the United States, as no extradition treaty exists between the two countries. The case highlights ongoing concerns about agricultural biosecurity and international research protocols.