How a French researcher being refused entry to the US turned into a diplomatic mess.

Laure Belot, Sandrine Cabut, Arnaud Leparmentier, Hervé Morin, Piotr Smolar22 March 2025
The researcher was detained by police at the airport for over a day before being sent back to France, leaving his work computer and cell phone in the US.

The US administration states that the scientist had sensitive data on his computer and phone, contradicting the version of events put forward by the French research minister, who publicised the incident.