Columbia Activists Are Being Detained. Protesters Demand Answers.

Hundreds of college students, faculty members and others took to the streets of New York City and to the campus of Columbia University on Thursday to protest the federal detention of organizers of pro-Palestinian demonstrations and what they regard as an assault on higher education.

The protesters demanded answers about the fate of Mahmoud Khalil and Mohsen Mahdawi, Palestinians who had been involved in campus demonstrations over the war in Gaza.

Mr. Khalil, a Columbia graduate and legal permanent resident, was detained on March 8 at his New York City apartment, was sent briefly to a New Jersey detention center and has since been held at a facility in Jena, La. Mr. Mahdawi, who is finishing his undergraduate studies in philosophy at Columbia’s School of General Studies, was detained by immigration officials on Monday after arriving for an appointment in Vermont that he thought was a step toward becoming a U.S. citizen.

Thursday’s protest at Columbia, with about 300 demonstrators, rang with chants of “Free Mohsen, free them all — every fascist state will fall,” accompanied by the beat of drums. Organizers handed out medical masks to help students shield their identities, along with fliers promoting a planned student strike.

Demonstrators criticized Columbia’s leadership for failing to more aggressively challenge demands by the Trump administration over what the White House described as the school’s failure to protect Jewish students from harassment. The federal government last month cut about $400 million in federal grants and contracts to Columbia.

Faculty members turned out in solidarity, condemning what they said was a growing authoritarian crackdown on universities by the Trump administration.