Representatives of South America's Mercosur group have met in Brazil after the EU postponed a long awaited trade agreement. Argentina, Brazil, Paraguay, and Uruguay had hoped to finally seal the world’s largest free-trade zone with the EU. The pact has been under negotiation for more than 25 years, and it still faces fierce opposition from key member states and European farmers. Many marched on Brussels to protest the deal, warning that cheap food imports from Latin America threaten their