The CEOs of Meta, Alphabet, TikTok and Snap have been invited back to Capitol Hill for a broad oversight hearing in June, Axios has learned.Senate Judiciary Committee Chairman Chuck Grassley is planning a June 23 hearing titled "Examining Tech Industry Practices and the Implications for Users and Families: Is This Social Media's Big Tobacco Moment?" per committee spokesperson Hannah Akey.The hearing will look at Big Tech and AI safety oversight, Akey said, along with other issues like whistleblower retaliation.Why it matters: The hearing comes as social media and AI companies are facing mounting lawsuits, including some first-time losses, and Capitol Hill gets closer to passing kids' online safety legislation.Social media CEOs also haven't testified in Congress since 2024, when they appeared before the Judiciary Committee to discuss many of the same topics.Details: The committee has not received any formal RSVPs from the CEOs yet, Akey said, but discussions are ongoing.People deserve to hear directly from CEOs, Akey said, following a Judiciary subcommittee hearing this week featuring parents pushing for stricter online legislation.