The recent detention of Mahmoud Khalil, a Palestinian activist and Columbia University graduate student, has drastic implications for free speech in the United States. Khalil, a legal permanent resident, was arrested by federal immigration authorities at his New York City apartment, over his lawful role in protests at Columbia University for the Palestinian cause, sparking nationwide protests and debate. I'm joined by Jaclyn Kelley-Widmer, an immigration lawyer and professor, to unpack the the legal concerns, what comes next, and what it means for the future of free speech in America.