Teenager sues social media platforms she says fuelled her depression and suicidal thoughts

It will be the first time the tech giants must defend themselves at trial over alleged harm caused by their products, the plaintiff's attorney said. 

Facebook and Instagram owner Meta, TikTok, and YouTube will face courtroom scrutiny this week over allegations their platforms are fuelling a youth mental health crisis in America, as the national debate about children's screen time enters a new phase.

Mark Zuckerberg is among those who will take the stand at the bellwether trial in California Superior Court, Los Angeles County.