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Julian Worricker speaks to Justin King the boss of Sainsbury's and the man responsible for importing 70,000 vuvuzelas to the UK - does he regret it? How have their customers fared in the recession and what next for Britain's third biggest supermarket?

Sky already uses the information they hold about customers to determine the adverts they see when watching TV online but now they want to extend this to some of their TV channels. So what you get in an ad break will be determined by your post code, subscription package and other data they hold about you.

We examine the effect that limiting housing benefit to four hundred pounds a week could have on those who rely on it to pay their rent, and on landlords.

And would you take 'cognitive enhancing drugs' to improve your performance at work? We speak to the Cambridge professor who says the practice is becoming more common, and more acceptable.