Confrontations between pro-Palestinian protesters and police are continuing on campuses across the United States, a day after New York police breached a Columbia University building occupied by demonstrators and arrested about 300 people at Columbia and the City College of New York. Police arrested 15 protesters at Fordham University and 34 at the University of Wisconsin in Madison. In Los Angeles, UCLA’s chancellor denounced “instigators” whom he blamed for violence that broke out overnight Tuesday between pro-Palestinian demonstrators and counterprotesters who tried to dismantle their camp.