French Scientist Denied U.S. Entry Over Anti-Trump Messages

The French government condemned the deportation, citing concerns over academic freedom and freedom of expression.

On March 9, 2025, a French researcher traveling to a Houston conference was denied entry to the U.S. after border officials found messages critical of Trump on his devices.
The messages, described by U.S. officials as 'hateful and conspiratorial,' led to the confiscation of the researcher's electronic devices and his deportation the following day.
The French government has condemned the incident, emphasizing the importance of academic freedom and freedom of opinion, while acknowledging U.S. sovereignty over border control.
U.S. Customs and Border Protection defended its actions, stating that inspections are conducted under longstanding immigration laws and are not politically motivated.
The case has raised concerns about privacy, the treatment of foreign researchers, and the broader impact of U.S. policies on international scientific collaboration.