A man is leaning against a train window with his eyes closed, superimposed is a graphic representing sound waves that are covering the window and the man's head
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Why train windows could start talking

Twitter has released a new tool to help more people follow the events in Egypt by providing automated translation powered by Microsoft Bing, Mozilla launches a new smartphone operating system and why train windows could start playing adverts.

BBC Click's Spencer Kelly looks at these and other tech news stories.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.

  • 05 Jul 2013
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