Pro-Palestinian protesters at Columbia University have been given an ultimatum to abandon their encampment or risk suspension, after the breakdown of talks aimed at having it removed voluntarily. The ultimatum, setting a Monday deadline of 2pm, came after the university’s president, Minouche Shafik, announced that efforts to reach a compromise with protest organisers had failed. She insisted that the institution would not bow to demands to divest from Israel. “It is important for you to know that the university has already identified many students in the encampment,” a letter written on university notepaper and headed ‘Notice to Encampment read. “If...