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A comment on Ask HN: Why are credit card chip readers so slow?. Parent comment

Re:Ask HN: Why are credit card chip readers so slow? by shawnz on Monday June 26, 2017 @08:28AM (#14636197)
So if offline transactions are viable, and faster, then why doesn't the US use them?
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Re:Ask HN: Why are credit card chip readers so slow? by kalleboo on Monday June 26, 2017 @11:23AM (#14637496)
They were viable 30 years ago, maybe not today
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