Tensions on Columbia University’s campus continued to rise on Thursday as the New York police department began breaking up student protests over Israel’s war on Gaza, at the direction of the school’s president, and arrests were made. Hundreds of students pitched tents and began camping out in the center of the famous central campus from early morning on Wednesday in protest, demanding a ceasefire and for the university to financially divest from Israel, prompting Columbia’s president, Minouche Shafik, to issue a stark warning. In an email to students, she wrote: “I authorized the New York Police Department to begin clearing...