Lawmakers are going after Facebooks development of Instagram for kids, after a report showed it knew the social media app is toxic for teen girls

Democratic lawmakers have filed a letter to Mark Zuckerberg and a pair of senators have launched a probe into Facebook over its platforms' negative impact on young people.

Facebook employees worried an algorithm change in the middle of Trumps presidency would push sensationalistic and divisive content, a new report says

Facebook graded posts - 1 point for "likes," 5 points for reactions, like angry emojis - to decide what to push to users, per the Wall Street Journal.