I thought it was really bad that Chagnon went in search of "pure people" who were uncontaminated by the industrial revolution, and went bearing gifts of machetes and axes that the indigenous people just immediately traded for other items that were of use to them. They were said to be very vicious people, but Chagnon's reports were all wrong because when people went back and visited they said that the Yanomami were the opposite and not murderers at all.