Big : a matter of fat.

Joan Bakewell hosts a debate on teenage obesity following the case of Christina Corrigan, the American teenager who died weighing 48 stone. Her mother, who has been convicted of neglect, talks to Helen Jackson (herself an obese woman) about Claire's plight and how hard for her it has been to be catagorised as a child abuser. Lord Nigel Lawson also talks about his dramatic loss of 5 stone in weight.