Harvard Scientist Charges Dismissed

What happened

Updated Nov 4, 5:58pm ET

A federal judge on Wednesday dismissed all criminal charges against Harvard Medical School researcher Kseniia Petrova over frog embryos she brought into Boston for cancer research.
Petrova, a Russian scientist, was stopped at Logan International Airport in February 2025 with undeclared samples and spent nearly four months in immigration detention.
Petrova said she did not know the samples needed to be declared, and her lawyers argued that prosecutors had selectively and vindictively targeted her.
Prosecutors rejected those claims but said the costs of continuing the case, including court-ordered disclosures to the defense, outweighed the public interest.
Prosecutors requested dismissal “with prejudice,” which would prevent the charges from being brought against Petrova again.

How the left told it

Left-leaning outlets emphasized Petrova’s detention and the legal setbacks preceding dismissal. CNN and the Los Angeles Times highlighted the ruling that her visa was improperly canceled; the Guardian placed her arrest within Trump’s immigration crackdown, while the Boston Globe detailed prosecutors’ argument that costs “outweigh the public interest.”

How the right told it

Right-leaning outlets focused on dismissal and the legal challenges behind it. The New York Post’s Reuters report highlighted prosecutors’ argument that continuing would divert resources from “more substantial federal interests”; Breitbart’s AP report emphasized the improper visa cancellation and her lawyers’ claims of selective and vindictive prosecution.