IN RE: SOCIAL MEDIA ADOLESCENT ADDICTION/PERSONAL INJURY PRODUCTS LIABILITY LITIGATION
Issue
In *In re: Social Media Adolescent Addiction/Personal Injury Products Liability Litigation*, Meta Platforms argues that Section 230 of the Communications Decency Act — which the court applied at the motion-to-dismiss stage to immunize certain platform features — should now operate as a categorical bar on trial testimony about those same features, preventing eight former Meta employees from testifying about algorithmic recommendations, infinite scroll, autoplay, notifications, and related design choices. The argument is doctrinally unusual because it asks the court to treat a prior liability-immunity ruling not merely as a defense on the merits, but as a forward-operating evidentiary exclusion under FRE 401 and 403. Meta separately argues that the witnesses lack sufficient personal knowledge under FRE 602 and 701, and that their broad characterizations of corporate culture and executive priorities constitute impermissible lay opinion.
What Happened
Meta filed Motion in Limine No. 3 on June 9, 2026, ahead of trial in this major multidistrict litigation over alleged harms to adolescents from social media platforms, with a hearing set before Judge Yvonne Gonzalez Rogers on June 26, 2026, and opposition due June 17, 2026. The motion targets eight named former Meta employees and seeks to exclude their testimony on two independent grounds. First, Meta argues that because the court's earlier motion-to-dismiss order (ECF 1214) held that certain platform features are immunized under Section 230, any testimony concerning those features is now irrelevant and unfairly prejudicial at trial. Second, Meta contends that deposition testimony from the witnesses reveals gaps in personal knowledge — for example, one witness allegedly admitted unfamiliarity with teen-safety initiatives, another never worked on Instagram — and that their broad opinions about Meta's institutional culture and leadership priorities go beyond what even qualified experts may offer. Meta also invokes a California state-court ruling from the parallel JCCP proceeding that reportedly limited one witness's testimony, urging the federal court to follow the same approach.
Why It Matters
Meta is attempting something more aggressive than a typical motion in limine: it wants a prior legal ruling that it cannot be held liable for certain features to also mean that witnesses cannot testify about those features at trial — the difference between a court saying "you cannot win on that theory" and saying "the jury cannot hear about it at all." If the court accepts this theory, it could substantially narrow the plaintiffs' trial presentation on core design-defect claims that survived the motion-to-dismiss stage, because the platform features at issue are the same ones underlying the surviving theories. No circuit court appears to have squarely endorsed using a Section 230 immunity ruling as a prospective evidentiary exclusion, making Judge Gonzalez Rogers's ruling on this question potentially the first of its kind in a major platform-liability MDL — and a significant marker for how Section 230 doctrine functions once a case reaches trial.
Related Filings
Other proceedings in the same litigation tracked by this monitor.
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