The world's biggest-ever video games deal is set to go ahead after the UK regulator gave it the green light. We ask the Competition and Markets Authority CEO, Sarah Cardell, why the watchdog changed its mind about Microsoft's $69 billion takeover. Our legal reporter Katharine Gemmell bring us her analysis. Plus: what would you change about the UK's tax system? We get the view of the head of the Institute for Fiscal Studies, Paul Johnson. Hosted by Yuan Potts and Stephen Carroll. 

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