The Brazilian Special-Forces Unit Fighting to Save the Amazon

For many viewers, the video was a rare document of an encounter with isolados—members of a Yanomami community living with no links to the outside world. For the armed men I was with, it was evidence: a potential lead in a high-profile initiative, sponsored by President Luiz Inácio Lula da Silva, to dislodge thousands of illicit miners from Yanomami territory.