Data journalist Matilda Davies opened her first Facebook account when she was 11 years old. Years later, she requested all the information the social media behemoth had been collecting on her. What she uncovered shocked her. So, how exactly does the data gathering work? And what can we all do to reclaim some privacy?

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Guest: Matilda Davies, data journalist, The Times and The Sunday Times.

Host: Manveen Rana.

Clips: NBC, The Guardian.

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