https://www.newsweek.com/french-scientist-banned-us-entry-me...

> The arrest continues a reported trend of temporary visa holders and visitors being detained by U.S. border officials on their way into the country amid heightened immigration enforcement under the Trump administration and concerns that free speech is no longer a defense when it comes to legal immigration status. // [...] U.S. authorities saw these messages as "hate and conspiracy messages," which prompted an FBI investigation that was later dropped. However, the researcher was sent back to France. // CBP's move to deny entry to a foreign national seemingly solely based on their opinion of the president, rather than necessarily expressing ill will or intentions to harm him, comes amid increased scrutiny of those entering the country. // Legal permanent residents, along with those on work-based visas, have been questioned, detained and even removed from the country in recent weeks, including two German tourists and a Canadian woman trying to renew her visa at the southwest border. // Immigration attorneys have begun advising clients to ensure their social media profiles are free of criticism of the administration and images that could be seen as inappropriate or in support of ideas that do not fit with current U.S. foreign policy.