The BBC's Ian Hardy discovers how cash registers now know more about us that we would have ever thought possible - and what it means for your spending.
[url=http://www.bbc.co.uk/news/business-20688292]More...[/url]
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The BBC's Ian Hardy discovers how cash registers now know more about us that we would have ever thought possible - and what it means for your spending.
[url=http://www.bbc.co.uk/news/business-20688292]More...[/url]