Bloomberg: ens of thousands of people were mobilised and equipped with sandbags and barricades to defend Belgrade and a power station in a nearby satellite town, Serbias largest, against the rising waters of the Sava river, which have killed 47 people so far. Tens of thousands more were evacuated to emergency shelters. Authorities believe the worst could be yet to come when on Wednesday morning the flood crest of the Sava joins the Danube. Following estimates that a quarter of the population of Bosnia and...