A well-written, exhaustively researched book on a significant subject that is almost ruined by Tierney's obsession with Napoleon Chagnon and his monomaniacal need to link Chagnon to a vast conspiracy involving the Atomic Energy Commission. Tierney's outrageous charges that Chagnon and his mentor James Neel not only exploited the Yanomami for their personal aggrandizement but almost wiped the tribe out by fomenting warfare and causing a devastating measles epidemic got him in deep trouble with the American Anthropological Association, who ultimately discredited Darkness in El Dorado in its entirety. This is a great pity, because the book holds up well without its earth shaking conclusions that Neel and Chagnon are callous, unscrupulous murderers. It would have been a good, if not a great book had Tierney merely described Chagnon's bull-in-a-china shop approach to anthropological research without going into any dark theories. Chagnon's drawing of blood from every living Yanomama he could get his hands on, his filming of fights to the death he to some extent caused then staged, his subjugation of an ancient and noble people to the fictive wars between cultural anthropology and what he calls sociobiology, all this is more than enough to implicate Chagnon in the devastation of the culture he studied. Chagnon's own book, Noble Savages, which came out last year, carries on this quixotic battle, assuming that it's impossible to combine evolutionary psychology with traditional ethnographic research. Chagnon loves to settle old scores with both his academic rivals and people in the forest who he thinks opposed him. Tierney covered this well, and in the process wrote one of the best books ever written about what anthropologists call emic vs. etic research. In the former the researcher lives with his subjects, interacts with them on a human level, and as far as possible lets them speak for themselves. The etic researcher is an indefatigable data collector, not caring how he acquires his numbers as long as they get him publications in peer-reviewed journals and tenure. The best parts of Darkness in El Dorado are the descriptions of the boorish, egomaniacal invasion of Yanomami territory by Chagnon and his henchmen. They blew the roofs off shabonos (large communal round houses) with the wings of their helicopters. They created murderous competition by giving away machetes and other weapons to people who would disclose the information they wanted. They made films designed not to to show life as it is lived in the villages, but the kind of violence Chagnon promoted in his "Fierce People" theories. They may not have fomented a measles epidemic by administering obsolete vaccines without antibodies, but they did collect vast amounts of blood in order to prove Neel's eugenic theories, which came to absolutely nothing but which Chagnon thought made him a Scientist with a capital S. As over against these aggressive intruders, Tierney counterposes a small group of emic writers, centering on Helena Valero. She wrote two books about her childhood capture by the tribe and how she came to identify with its culture. Then there is Kenneth Good, who broke with Chagnon and lived for at least eight years in a village, marrying one of its women. Yarima, Good's wife, is a remarkable character, turning the tables on the Western researchers, including Good himself, by presenting a witty a faux-naif view of their methods. Bursting with ironic humor and wit, Yarmia needs to write a book of her own, and may yet do so with the help of her and Ken's son David (Like The Good Project on Facebook to learn more.) Others, such as Jacques Lizot and Bruce Albert, continue to give us inside reports from the Yanomami themselves. Tierney describes all this well. Had he stuck with it, his book would be a classic. As it is, it resides in the dustbin of discredited critiques, and seems to have destroyed Patrick Tierney as a journalist. He's nowhere to be found on google. But Darkness in El Dorado remains well worth a read. It's greatest value is that it leads to books on the tribe by the authors mentioned above. In that sense, it's a seminal work that ought not be forgotten.