ICE Arrests Pro-Palestinian Activist at Columbia NYT Par :Eliza Shapiro 10 mars 2025 à 00:30 Mahmoud Khalil, who recently completed a graduate program at Columbia, has legal permanent residency, his lawyer said. © Bing Guan for The New York TimesMahmoud Khalil, a former Columbia graduate student, was a fixture at the campus’s pro-Palestinian demonstrations last spring, often speaking to the news media on behalf of student protesters.