When Gerald Hickey went to Vietnam in 1956 to complete his Ph.D. in anthropology, he didn't realize he would be there for most of the next eighteen years--through the entire Vietnam War. After working with the country folk of the Mekong Delta for several years, in 1963 Hickey was recruited by the Rand Corporation, which was contracted by the U.S. government to study and report on the highland tribes. From the buildup to war, when mountain tribespeople...