As the country awaits next week's verdict from the long-delayed Iraq Inquiry into why we went to war and what the lessons should be, Jane Corbin returns to southern Iraq.

As the country awaits next week's verdict from the long-delayed Iraq Inquiry into why we went to war and what the lessons should be, Jane Corbin returns to southern Iraq. With her are parents who lost a son, a soldier, there and the general who led British troops into battle. Why did it all go so wrong?