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In an attempt to thwart censorship, BBC News is now available through the privacy-focused browser Tor also known as the gateway to the \\u2018dark web\\u2019. \\n \\nFacebook\\u2019s ambitions to launch cryptocurrency \\nLast week, the founder of Facebook, Mark Zuckerberg, addressed critical questions about the company\\u2019s ambition to launch their own cryptocurrency \\u2018Libra\\u2019. Dr Catherine Mulligan of Imperial College London\\u2019s Centre for Cryptocurrency Research explains why some companies are leaving the Libra association. \\n \\nUNICEF start crypto-currency fund \\nUNICEF, the United Nations Children\\u2019s Fund, will now be able to receive donations in crypto-currencies like Bitcoin and Ethereum. Christopher Fabian, co-founder of UNICEF\\u2019s innovation unit, explains how this will allow the organisation to buy data directly from suppliers for schools that are currently offline. \\n \\nNew spy technology uses wi-fi signals \\nWi-fi signals are distorted as they bounce off objects. Dr Yasamin Mostofi from the University of California has created a way to use these distortions to \\u2018see\\u2019 and possibly identify a person moving behind a wall.

(Image credit: BBC)

Producer: Louisa Field