European and South American leaders have convened in Uruguay to finalize the controversial EU-Mercosur deal, a free trade agreement that will create a new open market for almost 800 million people. But many European producers are fearful that cheaper, lower-quality products will flood the market, damaging livelihoods and the global climate. Protests have erupted in Poland and France, with farmer unions blocking ports and motorways and pledging to cause as much disruption as needed to block the agreement. But what threat does the deal really pose to the industry and consumers?