Brazil engulfed by corruption probes

If you think the investigation into possible collusion with Russia by the Trump campaign has been a blow to the U.S. political system, consider...

Amazonia’s last uncontacted tribes

They survive by hunting and gathering in the forest or by cultivating gardens with handmade tools. In some cases, they don't wear clothing and speak...

Amazonia’s last uncontacted tribes

They survive by hunting and gathering in the forest or by cultivating gardens with handmade tools. In some cases, they don't wear clothing and speak...

Getting the Olympics right

All eyes are on Rio de Janeiro, Brazil, for the 2016 Summer Olympics. Athletes from all over the world will compete, all in hopes of capturing the...

Brazil’s impeachment drama

Brazil's senate vote to begin an impeachment trial against suspended President Dilma Rousseff is a turning point in the country's democracy. On...