The tribe is among last uncontacted Indians in South America . ( CNN ) -- Government revokes permission for Brazilian company to clear forest . Activists undertook legal action without Indians ' knowledge . Tribe has cleared nearly 15,000 acres of forest this year .
The tribe is among last uncontacted Indians in South America . Government revokes permission for Brazilian company to clear forest . Activists undertook legal action without Indians ' knowledge . Tribe has cleared nearly 15,000 acres of forest this year .