More than 1,300 people have been arrested at pro-Palestinian protests on at least 40 college campuses across the U.S. over the last two weeks. Why it matters: University administrations have cracked down on student demonstrators in unprecedented ways as protests grow in size and intensity. The majority of arrests have occurred at encampments and sit-ins. Dozens of smaller-scale college protests haven't seen altercations between demonstrators and police. More than 100 universities have had encampments or sit-ins.