Mark Zuckerberg took the stand on Wednesday in a landmark Los Angeles trial alleging that major social media platforms were intentionally designed to be addictive for children and teens.

Mark Zuckerberg and opposing lawyers dueled in a Los Angeles courtroom on Wednesday, where the Meta CEO answered questions about young people's use of Instagram, his congressional testimony and intern...

Part of the trial focused on the alleged harms of certain digital filters promoting cosmetic surgery, which Instagram chief Adam Mosseri previously testified about earlier in the trial.