A Hidden America: Children of the MountainsIn the hills of Central Appalachia, up winding, mountain roads, is a place where families face unthinkable living conditions. Isolated pockets here have three times the national poverty rate, an epidemic of drug abuse, and the shortest life span in the nation. In this program, Diane Sawyer travels to the Appalachian Mountains to report on children who live in rural poverty, and in particular, four who are determined to find a better life.