Former Khmer Rouge deputy prime minister

Former Khmer Rouge deputy prime minister and minister of foreign affairs Ieng Sary (C) smiles as he stands in the dock in the courtroom during a public hearing at the Extraodinary Chambers in the Court of Cambodia (ECCC) in Phnom Penh on April 30, 2010. Ieng Sary appeared at the Khmer Rouge court to appeal against his pre-trial detention. Up to two million people were executed or died of starvation and overwork under the movement until the Khmer Rouge were ousted by Vietnamese-backed forces in January 1979. AFP PHOTO / POOL / TANG CHHIN SOTHY (Photo credit should read TANG CHHIN SOTHY/AFP via Getty Images)