The 11th Panchen Lama controversy centers on the 30-year-long enforced disappearance of Gedhun Choekyi Nyima, and on the recognition of the 11th Panchen Lama. From Wikipedia
Tibetan groups, rights organizations, and Swiss lawmakers urge China to disclose the whereabouts of Gedhun Choekyi Nyima, missing since 1995, and to respect religious freedoms.