"On BBC HARDtalk Stephen Sackur speaks to Yanis Varoufakis, Greece's radical leftist finance minister at the height of the economic crisis, and an advocate of a new global progressive politics. The old certainties in European politics are crumbling. Voters seem fed up with the long established supremacy of the parties of centre right and centre left. The politics of identity and raw emotion have fuelled populist insurgencies from Italy to Sweden to eastern Europe. Mostly it's the right, not the left in the ascendant..."