My concern here is that it is only a matter of time before they figure out that if they tie facial recognition to credit card transactions to instore behavior they have something that marketers would pay good money to. Detect a woman is pregnant or elderly with mobility conditions. All great opportunities for assisting advertisers connecting with consumers (as the advertising industry puts it).
Add to that, very significant rates of false positives, and hey presto, you're on an unaccountable exclusion list with no effective redress. Anyone who's worked with databases knows GIGO. But very little incentive here to clean up the mess.
