A group of state attorneys general are investigating the photo-sharing platform Instagram and its effects on children and young adults, saying its parent company Facebook—now called Meta Platforms—ignored internal research about the physical and mental health dangers it posed to young people. The investigation is led by a bipartisan coalition of attorneys general from California, Florida, Kentucky, Massachusetts, Nebraska, New Jersey, Tennessee, and Vermont. It follows damning newspaper reports, first by The Wall Street Journal, based on the company’s own research that found that the company knew about the harms Instagram can cause teenagers—especially teen girls—when it comes to mental health and body image issues. Since those first reports, a consortium of news organizations, including The Associated Press, have published their own findings based on leaked documents from whistleblower Frances Haugen, who has testified before Congress and a British parliamentary committee about what she found. “For too long, Meta has …