The market for facial recognition technology is expected to be worth $9bn by 2022, thanks to rapid improvements in the speed and accuracy of the software. Recent strides in machine learning, using large datasets of images culled from the internet, have made this possible. But how ethical is this and how will it affect our privacy? Neville Hawcock discusses this question with Madhumita Murgia, European technology correspondent.

Read Madhu's article here

Contributors: Josh Noble, weekend news editor, Neville Hawcock, FT Weekend Magazine acting deputy editor, and Madhumita Murgia, European technology correspondent. Producer: Fiona Symon

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