`` Duch '' ran a notorious torture prison in Cambodia in the 1970s . He was sentenced in 2010 to 35 years in prison . ` The United States has been accused of using waterboarding and other harsh interrogation techniques on prisoners held at Guantanamo Bay, but it is not clear if they were used against al - Qaeda suspects captured by
`` Duch '' ran a notorious torture prison in Cambodia in the 1970s . He was sentenced in 2010 to 35 years in prison . At least 1.7 million people died under the Khmer Rouge .