Growing debt fears

How worried should we be about the financial turmoil which has engulfed the markets? Investors have been concerned about the downgrade of US Treasury debt and whether Italy and Spain will become the next victims of the eurozone sovereign debt crisis.

Lesley Curwen talks to the BBC's business editor Robert Peston and Guy Fraser-Sampson, senior fellow at Cass Business School.

Plus the BBC's Mark Gregory reports from Baltimore, Maryland on the reaction of ordinary Americans to the US debt crisis and future spending cuts.