In an unusual concerted move, 41 US states and the District of Columbia have filed lawsuits, accusing Meta of designing algorithms that harm children, and concealing internal research that provides evidence of such harm. The bipartisan group of attorneys general is also suing the social-media giant for restitution to the families they allege were harmed by platforms such as Facebook and Instagram, which are run by Meta. Over 60 per cent of American teenagers use Instagram. These cases are unprecedented because they apply the norms of consumer protection to companies typically viewed as technology-driven information services. Indeed, this sort of concerted bipartisan legal action has only occurred in the past in lawsuits that forced changes in the practices of the tobacco and pharma sectors. By analogy to those historical precedents, these could force massive transformations in the way social-media platforms and apps work.

)