This fall 4,852 freshmen are expected to enroll at UCLA, but only 96, or 2%, are African American — the lowest figure in decades and a growing concern at the Westwood campus. For several years, students, professors and administrators at UCLA have watched with discouragement as the numbers of black students declined. But the new figures, released this week, have shocked many on campus and prompted school leaders to declare the situation a crisis. UCLA — which boasts such storied black alumni as Jackie Robinson, Tom Bradley and Ralph Bunche, and is in a county that is 9.8% African American...