You have been granted access, use your keyboard to continue reading.Adam Mosseri, who leads the Meta-owned app, testified that the company was careful to test features used by young people before releasing them.Adam Mosseri, the head of Instagram, arriving in court on Wednesday to testify in a case that seeks to hold social media companies responsible for tech addiction.Credit...Damian Dovarganes/Associated PressInstagram Chief Says Social Media Is Not ‘Clinically Addictive’ in Landmark TrialAda...