Assignment: France - trouble on the vine

Low harvests, economic and climate change and changing tastes have impacted French wine. The French wine harvest has dropped 18% in one year. For some famous French wine-making regions the reduction has been much more. A combination of factors, including climate, finances and changing drinking habits has brought some wine-makers to the brink. Thousands of hectares of vineyards are being pulled up. Others are struggling to survive. John Murphy travels to Bordeaux and Languedoc - the world’s biggest wine-making region - to find out what is going on with wine, France’s most symbolic of products.