. >> next on cnn breaking news usc canceling its main graduation ceremony as pro-palestinian protests rock that campus and others around the country protesters, violet clashed with police today, hundreds arrested nationwide. >> nick watt is out front comparables fired and a lot of muscles deploy against protesters at emory in atlanta this morning it was an overwhelming amount of force against a group of college students two professors, among those arrested european administration blames trespassers for the tents and the unrest. >> these individuals are not members of our community. they are activists attempting to disrupt, our university emory does not tolerate vandalism or other criminal activity on campus this movement is mushrooming a brand new protest and princeton popular university for gaza we are making history three this morning. >> a protest encampment popped up at ucla after yesterday's violence and standoff across town at usc that led to nearly 100 arrests. today, this private university is closed to the public and usc just canceled their commencement mainstage event schedu