Officials at Columbia and some other schools have been negotiating with student protestors who have rebuffed police and doubled down. Other schools have quickly turned to law enforcement to douse demonstrations before they can take hold. After a tent encampment popped up Thursday at Indiana University Bloomington, police with shields and batons shoved into protesters and arrested 33. Hours later at the University of Connecticut, police tore down tents and arrested one person. The students at an encampment at Columbia University who inspired a wave of pro-Palestinian demonstrations across the country dug in for their 10th day Friday, as administrators...