A married couple from China who stole cutting-edge medical trade secrets and handed them to Beijing has had their U.S. citizenship stripped, exposing deep flaws in our immigration vetting process.
Story Snapshot
- Federal Judge James E. Simmons Jr. revoked citizenship of Li Chen and Yu Zhou for lacking good moral character after guilty pleas to theft and wire fraud.
- The couple, former Nationwide Children’s Hospital researchers, sold exosome isolation secrets for $1.5 million and founded a Chinese biotech firm with PRC funding.
- DOJ highlights this as abuse of immigration system, signaling Trump’s push to denaturalize criminals who hid crimes.
- Affirms America First priorities by protecting biotech IP from economic espionage amid U.S.-China tensions.
Court Revokes Citizenship for Moral Turpitude Crimes
U.S. District Judge James E. Simmons Jr. in the Southern District of California issued the revocation order. Li Chen naturalized in 2016, Yu Zhou in 2017. Both pleaded guilty in 2019 to conspiracy to commit theft of trade secrets and wire fraud. Chen received 30 months in prison plus three years supervised release. Zhou got 33 months plus three years supervised release. The court ruled these offenses showed crimes of moral turpitude, disqualifying them from citizenship under federal law requiring good moral character.
Biotech Espionage: Stealing American Medical Innovation
Li Chen and Yu Zhou worked for a decade in separate labs at Nationwide Children’s Hospital in Columbus, Ohio. They stole proprietary exosome isolation technology, a key advance in pediatric medical treatment. The couple sold the secrets to Chinese entities for nearly $1.5 million. They founded their own biotech company in China and gained shares in another firm using the stolen IP. China’s State Administration of Foreign Expert Affairs provided funding. The hospital secured over $2.6 million in restitution, underscoring the direct economic hit to American innovation.
Investigations by ICE Homeland Security Investigations and the Office of the Principal Legal Advisor uncovered the post-naturalization crimes. Arrests came in 2019 after evidence of transactions tied to Beijing. This spousal conspiracy amplified the threat, betraying trust in our research institutions.
DOJ Signals Aggressive Denaturalization Under Trump
Attorney General Pamela Bondi stated, “Gaining citizenship after committing serious crimes against the American people is an unacceptable abuse of our immigration system.” The DOJ press release framed the case as protecting national security and intellectual property. In Trump’s second term, the DOJ has denaturalized 13 individuals with 16 cases pending. This action aligns with broader efforts against those concealing crimes during naturalization, reinforcing immigration integrity.
Conservatives applaud this step as common-sense enforcement against economic sabotage. It counters years of lax policies that allowed bad actors to embed in sensitive sectors. Safeguarding biotech IP prevents China from gaining unfair advantages in healthcare tech.
Federal Judge Revokes Naturalization of Married Couple Who Conspired to Steal Medical Trade Secrets and Share Them with China https://t.co/LqUpNhN26G
— US Attorney CAS (@SDCAnews) March 31, 2026
Implications for National Security and Immigration Reform
The revocation deters economic espionage by naturalized immigrants, especially those with China ties. Nationwide Children’s Hospital regains financial edge through restitution. U.S. biotech firms must heighten vigilance against insider theft of exosome technology. Chinese researchers now face stricter scrutiny, protecting American jobs and innovations. Politically, it bolsters debates on vetting immigrants for loyalty and moral character, a win for limited government focused on citizens first.
Sources confirm full consistency on facts, with no contradictions. Uncertainties remain on deportation status and restitution payments, but the precedent strengthens defenses against IP theft.
Sources:
Federal judge revokes US citizenship of Chinese couple convicted of stealing medical trade secrets
