The president of the University of Miami was chosen Wednesday to become the next chancellor of the University of California, Los Angeles, where the retiring incumbent has faced widespread scrutiny over his handling of pro-Palestinian campus protests. Dr Julio Frenk, a Mexico City-born global public health researcher, was selected by regents of the University of California system at a meeting on the UCLA campus, where there was a swarm of security officers. Frenk will succeed Gene Block, who has been chancellor for 17 years and announced his planned retirement long before UCLA became a national flashpoint for US campus protests....