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Oh, how they sniggered. When a colossus like Apple unveils an epoch-making product in front of millions and it goes wrong, who can resist a wry smile and a caustic tweet? Yet Craig Federighi's embarrassing glitch with Apple's facial verification system at the launch of the iPhone X cannot obscure the importance of this watershed product to the whole industry, nor the positive effect it will have on the future of face biometrics.
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