Judge Rules Visa Revocation of Harvard Scientist Over Frog Embryos Was Unlawful
A federal judge has ruled that the U.S. government improperly revoked the visa of Kseniia Petrova, a Harvard University researcher accused of smuggling frog embryos into the country. Petrova, a Russian citizen, was detained at Boston's Logan International Airport in February 2025 after failing to declare the research samples. The court found that U.S. Customs and Border Protection (CBP) acted without proper authority in canceling her J-1 visa. Petrova spent four months in detention before being released on bail. The ruling highlights the limits of CBP's authority and the legal complexities surrounding customs violations. 
