 plaintiff yesterday which means it could be one of the plaintiffs given the opportunity to argue its case in court district officials say the primary claims in the complaint are for negligence and public nuisance the suit that was filed last year and updated in april in u.s district court of northern california accuses the parent companies of facebook instagram tiktok youtube and snapchat of designing features that addict children these features allegedly encourage what the suit calls dangerous challenges and contribute to the sexual exploitation of children