In this July 10, 2014 photo, tourists look at a painting depicting Khmer Rouge torture at the Tuol Sleng Genocide Museum, formerly the most notorious Khmer Rouge prison, in Phnom Penh, Cambodia. The ... more 
In this July 10, 2014 photo, tourists look at a painting depicting Khmer Rouge torture at the Tuol Sleng Genocide Museum, formerly the most notorious Khmer Rouge prison, in Phnom Penh, Cambodia. The slow course of justice for the leaders of Cambodia's murderous Khmer Rouge regime will inch forward again Wednesday, July 30, 2014 as a U.N.-backed tribunal holds an initial hearing against a pair of defendants in their 80s facing genocide and other charges. Khmer Rouge head of state, Khieu Samphan, and Nuon Chea, right-hand man to the group's late chief, Pol Pot, are among the few surviving top leaders of the brutal communist group, which was responsible for an estimated 1.7 million deaths from starvation, exhaustion, disease and execution when it was in power in 1975-79. (AP Photo/Heng Sinith) less 
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Associated Press | Photo By Heng Sinith
Tue, Jul 29, 2014 2:12 AM EDT