Cambodian people pray during the annual 'Day of Anger' at the Choeung Ek killing fields memorial in Phnom Penh on May 20 2016 More than 1000 people...
{"Image ImageDescription": "Cambodian people pray during the annual 'Day of Anger' at the Choeung Ek killing fields memorial in Phnom Penh on May 20, 2016.\nMore than 1,000 people watched black-clad students wielding rifles, knives and bamboo sticks to mimic Khmer Rouge crimes to mark Cambodia's annual \"Day of Anger\" against the genocidal former regime in the late 1970s. / AFP / TANG CHHIN SOTHY        (Photo credit should read TANG CHHIN SOTHY/AFP via Getty Images)"}