IN THE EARLY hours of April 30, Columbia University President Minouche Shafik announced that negotiations with student protesters had failed. She ordered the students, who were demanding that the school divest from Israel, to disband their encampments and end their protests. Instead, students occupied Hamilton Hall. They renamed the building — which has a long history of occupations — Hind’s Hall in honor of Hind Rajab, a 6-year-old Palestinian girl who was...