Apparently in 2002 you could post a huge chunk of a book without excerpting. If the author went very deep into uncharted Amazonia she had pull. The Brazilian govt jealously guards its indigenous population and protects it from outside influences (except perhaps mining and logging interests.) There are still (supposedly) primitive tribes living in the Stone Age lost in the Amazon jungles.
The History Channel has been running a series about lost Amazonian civilizations, but so far it hardly seems to merit a series.