"In 1956, a small group of evangelical Christian missionaries and their families journeyed to the rainforest in Ecuador intending to convert the Waorani, a people who had never had contact with the outside world. The plan was known as Operation Auca. After spending days dropping gifts from an aircraft, the five men in the party rashly entered the "intangible zone." They were all killed, leaving their wives and children to fend for themselves.".