STUDENTS FROM ACROSS THE NATION issue a call for free speech. “Over the weekend, 25 students from about 20 colleges around the country gathered at the University of Chicago to try to start a movement in which students would become leading defenders of free speech on campus — including speech that they find offensive. The students issued a statement Sunday that they plan to urge other students to sign and to abide by. . . . Individual students and student groups at some campuses have tried to make the case for free speech. At Harvard University, for example, a new student group is trying to invite the most controversial speakers possible to campus. But the effort started at Chicago is seeking to build a national movement, based on a philosophy of supporting free expression.”