고난의 행군
Natsios was one of the first people to blow the whistle on the devastating North Korean famine, writing in a "Washington Post" op-ed in early 1997, "The evidence is incontestible". He travelled to North Korea in June 1997 with World Vision, and was involved in relief efforts as the leader of the Emergency Relief Committee of InterAction, a consortium of American NGOs. Natsios later published a book on the crisis entitled "The Great North Korean Famine".