The FBI has launched a puzzling probe into 40 of the region's most prestigious wineries, including one vineyard owned by a former US ambassador. Those named in the investigation say they are 'baffled' as to its nature, but it is thought inquiries are being made into political donations made by the industry. The probe remains shrouded in mystery, it has lifted the lid a furious row between vintners and eco-warriors over the heart of America's wine paradise Read this story
