Here in New York, police arrested at least 79 protesters at Columbia University Wednesday after they occupied the campus’s main library to demand their school divest from Israel. The Columbia Palestine Solidarity Coalition says multiple students were hospitalized by public safety officers. At least one protester was carried away on a stretcher. Columbia’s acting President Claire Shipman said in a statement, “Columbia strongly condemns violence on our campus, antisemitism and all forms of hate and discrimination, some of which we witnessed today.”