A Cambodian man tries on shackles used on prisoners inside the Tuol Sleng Genocide Museum, also known as the notorious "Security Prison 21" (S-21), in the centre of Phnom Penh February 10, 2009. An estimated 17,000 people were imprisoned, tortured and killed in S-21, once a high school turned into an interrogation centre from 1975 to1979, under the Khmer Rouge regime. On February 17 Cambodia's UN-backed genocide tribunal will try the first of five Khmer Rouge leaders blamed for the deaths of 1.7 million people in the 1970s.REUTERS/Adrees Latif (CAMBODIA)
A tourist walks past hundreds of photographs of prisoners showcased in the classrooms of the Tuol Sleng Genocide Museum, also known as the notorious "Security Prison 21" (S-21), once a high school turned into an interrogation centre, in the centre of Phnom Penh February 10, 2009. An estimated 17,000 people were imprisoned, tortured and killed at S-21 during the Khmer Rouge regime between 1975 and 1979. On February 17 Cambodia's UN-backed genocide tribunal will try the first of five Khmer Rouge leaders blamed for the deaths of 1.7 million people in the 1970s.REUTERS/Adrees Latif (CAMBODIA)
A tourist walks between the hallways of the Tuol Sleng Genocide Museum, also known as the notorious "Security Prison 21", (S-21), once a high school turned into an interrogation centre, in the centre of Phnom Penh February 10, 2009. An estimated 17,000 people were imprisoned, tortured and killed in S-21 under the Khmer Rouge regime between 1975 and 1979. On February 17 Cambodia's UN-backed genocide tribunal will try the first of five Khmer Rouge leaders blamed for the deaths of 1.7 million people in the 1970s.REUTERS/Adrees Latif (CAMBODIA)
Tourists walk past hundreds of photographs of prisoners showcased in the classrooms of the Tuol Sleng Genocide Museum, also known as the notorious "Security Prison 21" (S-21), once a high school turned into an interrogation centre, in the centre of Phnom Penh February 10, 2009. An estimated 17,000 people were imprisoned, tortured and killed in S-21 during the Khmer Rouge regime between 1975 and 1979. On February 17 Cambodia's UN-backed genocide tribunal will try the first of five Khmer Rouge leaders blamed for the deaths of 1.7 million people in the 1970s.REUTERS/Adrees Latif (CAMBODIA)
A tourist is reflected in a showcase housing hundreds of photographs of prisoners as he enters the Tuol Sleng Genocide Museum, also known as the notorious "Security Prison 21" (S-21) in the centre of Phnom Penh February 10, 2009. An estimated 17,000 people were imprisoned, tortured and killed at S-21, once a high school turned into an interrogation centre, between 1975 and 1979 under the Khmer Rouge regime. On February 17 Cambodia's UN-backed genocide tribunal will try the first of five Khmer Rouge leaders blamed for the deaths of 1.7 million people in the 1970s.REUTERS/Adrees Latif (CAMBODIA)