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.

Columbia University says it has expelled or suspended some students who took over a campus building during pro-Palestinian protests last spring and temporarily revoked the diplomas of some students who have since graduated.

Columbia University on Thursday said it had doled out a range of punishments to students who occupied a campus building last spring during pro-Palestinian protests. The announcement came a week after President Donald Trump's administration announced that it had canceled $400 million in federal grants and contracts in response to what it said was the Ivy League school's poor response to antisemitism on campus.

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

Lawyers for Mahmoud Khalil say the detained Columbia University student felt he was being kidnapped after his arrest and swift transfer to Louisiana.

Mahmoud Kahlil, a Columbia University student who protested Israel’s war in Gaza, sued to block the turnover of disciplinary records to a U.S. House committee.