In May 2008 a helicopter flew over unexplored parts of the Amazon in Acre State in Brazil, near the country’s border with Peru. Onboard were officials from Funai, the Brazilian government''s Indian affairs department, on a mission to prove the existence of unknown Amazonian tribes who have never been in contact with the outside world. The few aerial pictures Funai has released show startled and intrigued people and their huts but do not reveal any landmarks which could be used to identify the exact location.