The world this week
Politics Chile’s president, Sebastián Piñera, declared a state of emergency for 15 days in two southern regions. The army will be deployed to help local police, who have struggled to contain violent attacks by indigenous groups seeking to reclaim ancestral lands. A demonstrator died during a protest led by indigenous groups in Santiago. Chile is in the process of drafting a new constitution, which may decentralise power and expand indigenous rights. A far-right presidential candidate campaigning on a law-and-order platform is polling well in a tight race ahead of the election on November 21st, in which Mr Piñera cannot stand. In Bogotá, Colombia’s capital, at least five American families connected to the United States embassy appear to have been afflicted with the Havana syndrome. The mystery illness, which causes ringing…