A 30-year-old Harvard researcher from Russia has been held for more than a month at a private detention center in Louisiana where federal immigration officers are sending a growing number of international students with lives here suddenly in jeopardy.

Harvard Medical School researcher Kseniia Petrova is detained at a United States Immigration and Customs Enforcement facility in Louisiana after her research visa was revoked last month for inadvertently failing to properly declare frog embryos she brought into the country.

Harvard Medical School researcher Kseniia Petrova was detained by Immigration and Customs Enforcement (ICE) after she failed to disclose frog embryos she brought into the country.   Petrova’s