New Amazonian tribe discovered

This story had me reading up about isolated tribes last night... There are more than 100 tribes like this in the world, in New Guinea and in the Amazon Forrest. Christian missionaries wouldn't stand a chance. They'd kill half the people by spreading diseases they aren't immune to. But they'd never get close enough. The reason these tribes remain so isolated is that they are hostile to any approaches from outsiders. Unless those Christian missionaries go in with guns blazing, trying to mow them down, they will end up with their skulls on sticks. Two years ago, one of these isolated tribes on an island near India, killed two fishermen who were fishing within range of the island and then they drove off the helicopter that was sent to retrieve their bodies with a hail of arrows.

 

Uncontacted is a bad term. More like isolated. There are very few tribes that haven't had some kind of contact with modern civilization. The tribes that is referring to, though, make contact really difficult and dangerous and choose to remain isolated.