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Two Chinese nationals implicated in a biological materials smuggling case appeared in federal court on Friday. Authorities argue that their actions pose serious threats to national security.
Yunqing Jian, a post-doctoral research fellow at the University of Michigan, along with Chengxuan Han, a student from Huazhong University of Science and Technology, were ordered to remain in federal custody as their legal proceedings continue. The cases revolve around allegations that the pair was involved in shipping hazardous biological materials into the United States.
During the court session, Han became visibly emotional upon learning that her preliminary hearing has been pushed back. She fought back tears while her attorney requested a brief detention hearing. Han’s legal representation stated that their client consents to remaining detained without prejudice, effectively extending her time in federal custody.
Her attorney emphasized that Han is presumed innocent until proven guilty and suggested they would refrain from issuing further comments until more proceedings take place.
The preliminary hearing, originally scheduled for June 23, was postponed to June 30, meaning both Han and Jian will remain in federal custody until their next court appearances.
Jian and Han’s troubles began when they allegedly attempted to import Fusarium graminearum, identified by prosecutors as a potential agroterrorism weapon capable of causing significant harm to humans.
U.S. Attorney Jerome Gorgon underscored the gravity of the allegations. He stated that the actions taken by the accused, particularly in collaboration with a known member of the Chinese Communist Party, raise profound national security concerns. He explained that these individuals are accused of smuggling a fungus into the United States potentially to exploit it in a University of Michigan laboratory.
Han, already arrested in June, faces accusations of mailing undeclared biological materials to colleagues affiliated with the University of Michigan’s laboratory from September 2024 to March 2025. The government’s case rests on a series of communications indicating that Han discussed various methods of shipping the fungus, including hiding it in her shoes.
The fungus in question is notorious for causing a disease known as