Loung Ung is the author of the memoir, “First They Killed My Father: a daughter of Cambodia remembers” (HarperCollins). UNG’s father had been a high-ranking government official, but in 1975 when Pol Pot’s Khmer Rouge invaded Phnom Pen, her family fled, hiding in villages as peasants. But eventually her father was taken away and killed, and the family disperses to survive. Ung was seven years old and sent to a work camp, trained as a child soldier. Now UNG is National Spokesperson for the “Campaign for a Landmine Free World.”