Indigenous youth wield tech to protect Amazon

HER grandfather defended native lands in the Brazilian Amazon with bows and arrows. Today, the weapon of choice for Txai Surui and many young indigenous activists like her is technology.

The 26-year-old Brazilian is one of the stars of Web Summit Rio, the world’s biggest annual technology conference, which was held for the first time outside Europe this week, gathering more than 20,000 entrepreneurs and investors in Brazil.