> "The supermarket is adding customers to secret watch-lists with no due process, meaning shoppers can be spied on, blacklisted across multiple stores and denied food shopping despite being entirely innocent," said Big Brother Watch's director Silkie Carlo.<p>To opt-out, one simply chooses to not shop at that business. Also, to avoid biometric recognition, one would have to protect their identity, in essence covering their face while in public. In the age of Covid-19, wearing a face mask is considered to be quite sensible, but also has the added perk of increasing privacy.<p>> "This is a deeply unethical and a frankly chilling way for any business to behave."<p>It's not deeply unethical, and it's certainly far from imoral. Having security cameras is a sensible activity. Having people who monitor security cameras is a sensible activity. Having those people monitoring the cameras remember past security incidents is sensible. Automating the whole process is reasonable.<p>It's intellectually dishonest to proclaim a system is unethical simply because it's more efficient at detecting unwelcome guests than a typical human would do anyways. It's like saying it's unethical to not allow cheating.