The EU is proposing to put nuclear power on its list of sustainable energy sources. But Austria is threatening to file a case with the Court of Justice of the European Union to get that text annulled. The country has never embraced nuclear energy and is even home to the world’s only power station to have been built but never fired up. Austria produces more than 75 percent of its electricity from renewable energy and is a leader of anti-nuclear advocacy in Europe. Our correspondents report.