Worrying new threat: tragedy in Sri Lanka

After co-ordinated bomb attacks that killed hundreds, Sri Lanka is reeling. But if the government was so consumed by internal struggles as to miss warnings, how can it respond to the devastation? We take a look at global efforts to contain corruption, drawing lessons from Brazil’s sprawling Lava Jato investigation. And, a visit to what will be the precise geographic centre of the European Union—if and when Britain leaves.