A landmark California trial against Meta and YouTube has begun in California, with attorney Mark Lanier arguing tech giants built addiction machines targeting children.

A case accusing Meta and YouTube of addicting young users could reverberate through courtrooms for years to come.

Meta and Google are defending themselves in a California court - and what happens at this trial could affect thousands of other cases ...

Big tech companies argue their platforms are communication tools not traps, and that addiction is a mischaracterisation of high engagement.