Biotech firm working to develop tobacco as biofuel crop

A U.S biotechnology company is pioneering tobacco as a renewable biofuel crop. Unlike most bio-tech firms, Tyton BioEnergy Systems is not working in a science park close to a university. Instead it's chosen to locate at the heart of traditional tobacco country in the state of Virginia. CCTV America's Correspondent Daniel Ryntjes reported this story from Danville, Virginia.