[AnotherUnixGeek]

Why does the left want to leave these people to rot in the jungle?

There are some legitimate concerns, such as exposing these people to viruses they've never encountered before and have no immunity against. But certainly they should be made aware that there's a wider world with a cleaner, safer, less dangerous way of life out there, and given the opportunity to join that world.

[Sacajaweau]

Wonder what their life time is? If they're dying out from simple diseases like malaria, typhoid? Surely, they're not expanding and will become extinct just as many other tribes.

Now, a snail darter or an owl...that's another thing.

[arthurus]

The history of contact is that those who “join the modern world” join it at the slums or on reservations and all that implies. Some do come out of the forest individually and if they survive their own “first contact” they disappear into the modern world and we don’t learn anything about them because they are not in the “care” of the sociologists.