New York, April 26 -- - USC cancels graduation ceremony and dozens are arrested on other campuses

- With graduation near, colleges seek to balance safety and students' right to protest

- Protests are carefully planned and improvised when needed

Austin, Texas: With graduations looming, student protesters doubled down early Thursday on their discontent of the Israel-Hamas war on campuses across the country, with multiple arrests made at campuses in Massachusetts and California as universities have become quick to call in the police to end the demonstrations and make arrests.

At Emerson College in Boston, 108 people were arrested and four police officers suffered injuries that were not life-threatening at an encampment, Boston police sai...