Despite some of the lowest crime rates in the region, Chileans fear crime more than any of their Latin American neighbours. CityHero lets them take security into their own hands – by helping members of the public collaborate to solve civic issues.

In a hyperconnected world, the ability to communicate with society at large has been democratised, whether you're a professional journalist or a top commenter. How can so much noise be filtered without impeding on freedom of speech?

Performed mainly by men, Passinho is a new way of dancing funk born in the favelas of Rio. It highlights a new side to Brazilian men: a growing obsession with vanity. But how does it challenge favela stereotypes? And what does this new behaviour reveal about Gen Y?

Want to get involved in the general election? In Brazil there's an app for that – in fact, there are three. While one provides detailed information on each candidate, another offers directions to voting centres and explains how districts are divided, and a third gives real-time updates on voting.