The exiled Tibetan spiritual leader, the 14th Dalai Lama, marked his 90th birthday earlier this month with an announcement that his successor as Tibetan Buddhism’s most senior religious figure would be a reincarnation, to be identified after his death by the staff of his office in Dharamsala in northern India — where he has lived since fleeing Tibet in 1959 after a failed uprising against Chinese rule. The announcement is likely to set up a clash with Beijing, which says it alone has the righ...