US bans differential privacy in Census data
Some Internets at the Department of Commerce (business model: “Uber for losing your personal information but also keeping it”) have decided that adding noise to Census data is now illegal, because nothing says “privacy protection” like making it trivially easy to reconstruct every single person’s answers. Hackernews, all of whom are either professional privacy mathematicians or people who have never touched a real dataset, spend dozens of comments arguing that differential privacy was a disaster that ruined their ability to analyze data for six gerrymandering projects, while other Hackernews counter that without noise the data will be weaponized against minorities—a disagreement that will be resolved, as always, by making the data simultaneously less useful and less safe. The census will now return to its pre-2020 glory: a towering edifice of statistics that nobody actually trusts, served to exactly the kind of people who want to know where you live and whether you’re registered to vote.