Brazil — it’s the “B” in the acronym BRICS, five emerging economies once seen as soon-to-be superpowers. After economic troubles in the 1990s, Brazil has risen to new global prominence — it’s drawing in more investment, working on global issues ranging from climate change to peacekeeping, and even hosting the 2014 World Cup and the 2016 Olympics. But some of Brazil’s trickiest problems — staggering income inequality, weak civic institutions, poor regional leadership — have held it back.