The administration of the prestigious University of Chicago has drawn a line in the sand on one of higher education's hottest topics: whether what some students see as protection from hate speech trumps the traditional right to free speech. In a letter to incoming students, Dean of Students Jay Ellison cast the university's stance as a matter of "academic freedom." The letter has been circulated widely. "We do not support so-called 'trigger warnings,' we do not cancel invited speakers because their topics might prove controversial, and we do not condone the creation of intellectual 'safe spaces' where individuals can retreat...