Quiz Sir John Krebs

Sir John Krebs is chairman of the new Food Standards Agency, the organisation created in the UK in the wake of the BSE scandal and other public health scares.

Their aim, in their own words, is "to protect the publich health and represent the interests of consumers in relation to food".

Sir John took questions from BBC News Online readers. They were put to him by the BBC's Eddie Mair. Click on the button below to listen to his answers.