In a stunning first for the UN-backed tribunal, jailed Khmer Rouge leader Nuon Chea stood before the court and claimed responsibility for the atrocities, destruction and damage wrought on Cambodians by the brutal regime. Nuon Chea, known as Brother No. 2, is 86 years old and had to be helped to stand by a security guard. He spoke before a number of civil party trial participants who were victims of the regime and have been testifying this week. Kong Sothanarith, Phnom Penh.