French Scientist Denied U.S. Entry Over Criticism of Trump Administration

The incident has drawn international attention to academic freedom, immigration policies, and diplomatic tensions between France and the U.S.

A French scientist traveling to a conference in Houston was denied U.S. entry on March 9 after Customs and Border Protection (CBP) officers found messages on his phone critical of the Trump administration.
U.S. authorities reportedly accused the scientist of sending 'hateful and conspiratorial messages,' prompting an FBI investigation that was later dropped.
The French government has condemned the expulsion, with Research Minister Philippe Baptiste emphasizing the importance of academic freedom and free expression.
The scientist, affiliated with the French National Center for Scientific Research (CNRS), was expelled to France the following day, and his phone and computer were confiscated.
The incident highlights broader concerns about U.S. immigration enforcement, freedom of opinion, and strained scientific collaboration between France and the United States.