In Cambodia, a high-ranking Khmer Rouge official who oversaw the torture of thousands of people in the 1970s appeared in court Tuesday. Kaing Khek Iev, also known as Duch, is the first Khmer Rouge leader to appear in public before a UN-backed tribunal investigating the Pol Pot regime’s atrocities. Duch is accused of crimes against humanity for his role heading a prison known as S-21. As many as 16,000 people were tortured there before they were taken away for execution.