How Vienna beat Europe's rent crisis

House prices and rents have surged by up to 60% across the European Union over the past decade. But one capital is bucking the trend. In Vienna, around two-thirds of residents live in subsidised housing, with rents often less than half those in other major European cities. The Austrian capital's model has drawn global attention, with delegations visiting each year to study its success. But some experts warn that political shifts, including the rise of the far right, could threaten this long-standing system. The World's Europe Correspondent Orla Barry reports from Vienna.