For most defectors the decision to leave North Korea is never an easy one, and there are major difficulties in addressing the refugee crisis. Those crossing into China risk arrest and deportation, and the safety of those left behind is often in question. Hyeonseo Lee defected from North Korea in 1997, and has since become an activist for human rights. Her memoir, The Girl with Seven Names, is a New York Times best seller. Guest: Hyeonseo Lee