The US Department of Justice asked a federal court to dismiss a Clean Air Act lawsuit against xAI, arguing that shutting the company’s gas turbines would threaten national security. The NAACP complaint says xAI ran 27 gas turbines without proper permits for the Colossus 2 data center near Memphis, Tennessee. The case is relevant to SpaceX because SpaceX absorbed xAI in February in an all-stock deal worth about $1.25 trillion.