I think this is what they are referring to: "French scientist denied US entry after phone messages critical of Trump found" [1][2] [1] https://www.theguardian.

I think this is what they are referring to: "French scientist denied US entry after phone messages critical of Trump found" [1][2] [1] https://www.theguardian.com/us-news/2025/mar/19/trump-musk-french-scientist-detained https://www.theguardian.com/us-news/2025/mar/19/trump-musk-f... [2] https://news.ycombinator.com/item?id=43418059 https://news.ycombinator.com/item?id=43418059