Headset allows silent chat with computers - and other news

BBC Click's Paul Carter looks at some of the best of the week's technology news including:

  • Facebook believes the data of up to 87 million people was improperly shared with the political consultancy Cambridge Analytica - many more than previously disclosed

  • A wearable device has been developed which allows you to talk silently to your computer

  • An inaugural test flight for a postal drone in Russia crashes shortly after take-off

See more at Click's website and @BBCClick.