I love primary one school photos: rows of neat bright-eyed five-year olds each in a brand new uniform.  Sweet? Yes but now they conjure up an image of other wee kids: like Carly, one of the estimated 100,000  children working up to 13 hours a day picking cotton in India. She featured in a recent news report, prizing  open fat cotton buds and dropping the contents into a basket. She wore a grubby dress and had no idea where her parents were. Her arms were covered  in scratches and she earned 24p a day. Child labour is tightly controlled in modern Britain but we've merely relocated the problem.