The Office of Fair Trading has launched an investigation into games on phones and tablets that are free to download, but could end up costing parents hundreds - even thousands - of pounds.
It follows concerns that children could be tricked into spending money on upgrades without realising the cost.
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In an embarrassing setback for the president, Republicans failed to reach the number of votes to pass his new healthcare act into law.
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Some of Britain's biggest stars of the stage and screen will be honoured at Buckingham Palace later today.