Interesting CAPTCHA-related work from Google

The following article and the announcement that it cites are relevant to our discussion of CAPTCHA.
https://thenextweb.com/security/2017/03/09/googles-ai-is-so-smart-it-doesnt-need-to-ask-you-if-youre-not-a-robot-anymore/#.tnw_a5fmq504#.tnw_70AOQr4k


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