Meta knowingly downplayed the addictive nature of social media products that its own researchers privately compared to drugs as part of a broader effort to conceal the impacts of its platforms on teenage mental health, according to an explosive new court filing.

Australia is banning social media for everyone under the age 16 from December 10. The government says their aim is to keep children safe from cyberbullying, harmful content and online predators - but will a ban work?