Mahmoud Khalil, a legal permanent resident and Columbia alum, was detained by ICE for his role in leading pro-Palestinian protests at his former university last year. As Khalil's case has captured the nation's attention, free speech advocates see it as a test of the First Amendment. Meanwhile, the Trump administration argues they have the right to deport Khalil without charging him with a crime. On this episode, why Khalil's arrest should worry all of us.