A Columbia professor was quickly shut down after warning her colleagues that the Morningside Heights campus had been infiltrated by outsiders with “known ties to terrorist organizations.” Professor Carol Ewing Garber immediately had her mic muted after speaking out about campus security at the May 3 Zoom meeting of the university’s faculty senate — which was held hours after the school’s Hamilton Hall was overrun by a mob of Hamas-supporting students. “There really is a need for good security on campus and it was very clear . . . that the university was unable to do that given the number...