Mark Zuckerberg testifies in social media addiction trial

Tech giant and Facebook founder Mark Zuckerberg took the stand today, dismissing the idea that his main goal was to maximize the time teens spent on instagram - while grieving parents from across the country tried to hold him accountable. NBC News’ Laura Jarrett has the story.

Tech giant and Facebook founder Mark Zuckerberg took the stand today, dismissing the idea that his main goal was to maximize the time teens spent on instagram - while grieving parents from across the country tried to hold him accountable. NBC News’ Laura Jarrett has the story.

Tech giant and Facebook founder Mark Zuckerberg took the stand today, dismissing the idea that his main goal was to maximize the time teens spent on instagram - while grieving parents from across the country tried to hold him accountable. NBC News’ Laura Jarrett has the story.