The religious leader of Tibetan Buddhism said Sunday that he has been warned about possible threats against his life by Chinese agents. The 76-year-old Dalai Lama said the agents, disguised as female Buddhists, may have been sent to poison him. In addition to being a spiritual leader, the Dalai Lama was until recently the head of the Tibetan government-in-exile, and the Nobel Prize winner lives under careful protection near the Himalayan foothills in Dharamsala. Relations between the Chinese and Tibetans have been strained over the past year, with more than 30 Tibetans self-immolating last year in protest of Chinese rule.