A "sea change" in world trade talks over the past several months has raised hopes of a deal that would cut farm subsidies and open new markets around the world for farmers, manufacturers and service providers, a top U.S. trade official said on Thursday, according to Reuters. "We are now on a path that can lead us to a successful result," Deputy U.S. Trade Representative John Veroneau said in remarks at the Swedish Embassy. Meanwhile, a diplomatic source who asked not to be identified, said the United States and the European Union had "basically" reach a deal on farm subsidies and tariffs that long have been the most difficult issue in the talks. "They're getting very, very close," the source said.