DOJ backs xAI turbines, cites Grok role in Iran strikes
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- DOJ filed to intervene in the NAACP's Clean Air Act lawsuit against xAI's 27 gas turbines totaling 495 MW in Southaven, Mississippi, seeking dismissal on national security grounds.
- DOD's Chief Digital and AI Officer Cameron Stanley testified that Grok is one of only four "frontier" AI models supporting national security applications and that losing Colossus 2 power would impair DOD's ability to keep pace with adversaries.
- Grok was revealed to have been used in "Operation Epic Fury" against Iran, where its integration into the Maven Smart System enabled U.S. forces to deploy over 2,000 munitions to 2,000 distinct targets within 96 hours.
- The NAACP filed the suit in April against xAI and subsidiary MZX Tech, alleging Clean Air Act violations, and in May sought a preliminary injunction against continued turbine operation.
- Mississippi's Department of Environmental Quality ruled in July that the turbines qualify as portable units under the Clean Air Act's mobile source exemption — a decision the NAACP is now challenging in federal court.
- Mississippi Gov. Tate Reeves backed xAI in a DOJ-included letter, calling the NAACP suit an attempt to halt "the largest private investment in Mississippi's history."
- The Environmental Protection Network warned that DOJ's filing amounts to a sweeping "veto power" allowing the executive branch to override citizen enforcement suits whenever they conflict with the administration's "AI and data center agenda."
Why it matters: xAI gains operational certainty for its 495 MW Colossus 2 site while the NAACP's environmental enforcement path narrows; if a court accepts DOJ's framing, plaintiffs nationwide could find Clean Air Act suits preempted whenever they touch AI infrastructure deemed critical to national security.
