MLex Summary: The US Federal Trade Commission is disputing Meta’s ability to present, and a federal judge’s ability to consider, highly relevant data about usage of its products Facebook and Instagram, which includes data from the January 2025 TikTok outage, Meta said in a court filing. Evidence showing that millions of users quickly substituted to Facebook, Instagram, and YouTube after TikTok went dark in the US goes to the heart of the FTC’s antitrust claims against Meta over its purchases of Facebook and Instagram, the filing to the US District Court for the District of Columbia said. “This provides further and significant evidence that TikTok is in the same market as Instagram and Facebook. The FTC understandably wants to keep this evidence from the Court,” it said.