Legal residents of the United States sent to foreign prisons without due process. Students detained after voicing their opinions. Federal judges threatened with impeachment for ruling against the administration’s priorities.

In the Opinion video above, Marci Shore, Timothy Snyder and Jason Stanley, all professors at Yale and experts in authoritarianism, explain why America is especially vulnerable to a democratic backsliding — and why they are leaving the United States to take up positions at the University of Toronto.

Professor Stanley is leaving the United States as an act of protest against the Trump administration’s attacks on civil liberties. “I want Americans to realize that this is a democratic emergency,” he said.