Tourism is threatening the very existence of a tribe of people known as the Jarawa. As recently as 20 years ago this tribe would kill any outsiders that they come into contact with but recently they have been exposed to tourists and settlers due to the building of a new road. This is a fascinating article which raises some big questions about what should happen to this tribe. There are currently only 320 Jarawas left in the world. The tribe are found in the Andaman Islands have a look here to find out where that is or here to find out why tourists want to go there.