Between classes, when throngs of students stream into and out of Columbia University ’s campus, the security lines can back up like a TSA checkpoint. There’s a switch-back path of metal fencing that leads into a white tent, where two sets of guards check and then swipe campus ID cards before letting students in and out.

In an email, Interim President Katrina Armstrong wrote that she was “heartbroken” to inform students and faculty of the federal agents’ visit. The students were not arrested or

Department of Homeland Security officials conducted the search as the Trump administration sought to deport a former student and pro-Palestinian activist.

A newly released video shows the moment federal immigration agents arrested Mahmoud Khalil, a prominent Palestinian activist whose detention has sparked waves of protest across the country

Officials from President Donald Trump's administration have said Mahmoud Khalil was detained for his purported support of Hamas, a claim his attorneys deny.