After reading 'Darkness in El Dorado' , I find it intriguing that Chagnon was permitted to stay for as long as his did in the Yanomami community. Why did thousands of Yanomami people let an outsider, who poked and prodded them and bribed them using machetees and other mechanical instruments, stay for months at a time? It is undeniable that Chagnon exagerrated most of his findings, a fact that has been proven my numerous anthropologists who have also studied the Yanomami. In regard to the measles vaccine, this raises the question how just how far can an anthropologist go before violating the rights of humans? Chagnon and his team, in their unrelenting research, took things to the extreme more often than not. Ethics and anthropology seem to be very closely related in this controversy, and more information on this topic will help.