A landmark trial is underway, with a former Facebook employee testifying on the first day. The employee claimed that Meta downplayed internal research and warnings about potential harm to kids from using Facebook and Instagram. This testimony suggests that the company may have been aware of issues with its social media platforms but did not take adequate action.

Further details about the trial and testimony are available from the source. The trial is significant, with the former employee's statements shedding light on Meta's handling of concerns about its platforms.

The outcome of the trial is not yet known, and more information may become available as it progresses.