# US prosecutors drop all criminal charges against Russian scientist

https://mins.news/en/item/129888

- CNN, 2026-11-05 01:01 UTC
- Society
- Original: https://www.cnn.com/2026/11/04/us/us-frog-embryo-researcher?Date=20261104&Profile=CNN

> US prosecutors have dropped every criminal charge against a Russian scientist who was sent to an immigration detention facility last year after arriving at Boston airport with frog embryos for cancer research at Harvard Medical School.

## Related coverage

- [Scientist who brought frog embryos to Boston for cancer research cleared of smuggling charges](https://mins.news/en/item/129748) — The Associated Press, 2026-11-04
- [US moves to drop smuggling charges against Harvard scientist](https://mins.news/en/item/128041) — Reuters, 2026-11-04
