Kaing Guek Eav, known as Duch, who ran the Khmer Rouge's "S-21" torture and interrogation centre, listens during his trial by a U.N.-backed tribunal at the Extraordinary Chambers in the Courts of Cambodia (ECCC) on the outskirts of Phnom Penh November 25, 2009 . Closing arguments began on Monday in the trial of Pol Pot's chief torturer, the first for a top Khmer Rouge cadre 30 years after the end of a regime blamed for 1.7 million deaths in Cambodia. REUTERS/Mark Pitters/ECCC/Handout (CAMBODIA CRIME LAW CONFLICT POLITICS) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS
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