Loung Ung was five-years-old when the Khmer Rouge assumed power over Cambodia in 1975 and began a four-year reign of terror and genocide in which nearly two million Cambodians died. Forced from her family's home in Phnom Penh, Ung was trained as a child soldier in a work camp for orphans while her six siblings were sent to labor camps. Based on her memoir "First They Killed My Father: A Daughter of Cambodia Remembers."