(3/5/21) The Vale do Javari indigenous territory is home to 4,000 indigenous people from six known tribes, but it also protects the largest number of tribal peoples living in complete isolation in the Brazilian Amazon. Collectively, the tribes face threats of loss of ancestral land, oil exploitation, animal poaching, drug trafficking and gold mining all while facing an underlying health crisis that left unchecked could completely wipe all of them out. Building on a family legacy of exploration and environmental filmmaking, in her new documentary Tribes on the Edge, filmmaker and activist Céline Cousteau journeys to the Brazilian Amazon at the request of tribal leaders in order to bear witness. Join us for a look at their struggle to survive while preserving a way of life thousands of years old in this installment of Leonard Lopate at Large on WBAI.