He was very smug and just tried to say there was no studies out there that showed this was dangerous to kids,” McGrath said.

Mark Zuckerberg Testimony Live Updates: Mark Zuckerberg is set to testify in a Los Angeles jury trial over claims that Instagram harmed young users’ mental health. The lawsuit alleges Meta Platforms ...

Add Yahoo as a preferred source to see more of our stories on Google. ABC News contributor Mike Muse discusses the testimony from Adam Mosseri, head of Instagram, who testified in a landmark trial ...