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20/09/2014

How the crowd is helping to track down extremists, and can twin lasers improve the 3D movie experience? Includes tech news and webscape.

15 minutes

Last on

Sun 21 Sep 201421:45GMT
BBC News UK HD & UK only

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  • Sat 20 Sep 201402:30GMT
    BBC News UK & UK HD only
  • Sun 21 Sep 201421:45GMT
    BBC News UK HD & UK only

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