Justice Department Cites National Security to Defend xAI's Turbines

A fight over air quality in South Memphis has turned into an argument about war. The Justice Department, joined by the state of Mississippi, has asked a court to throw out a lawsuit the NAACP filed against Elon Musk's xAI over the gas turbines powering its Colossus 2 data center. The government's reasoning is striking: the facility matters too much to the military to be slowed down.

The dispute started on the ground, with a power plant and its neighbors. The NAACP sued xAI in April, alleging the company ran 27 methane gas turbines to feed Colossus 2 without the permits the law requires. The group later asked for an injunction to stop the turbines, arguing they raise local risks of asthma attacks and heart disease in a community that already carries a heavy pollution burden. The case was documented by Earthjustice, which is representing the plaintiffs.

From local permits to national security

Rather than litigate the permit question on its own terms, the federal government widened the frame. According to Engadget, the Justice Department argued that xAI is integral to military operations, and that forcing the turbines offline "threatens American national, economic, and energy security by seeking to shut off the power supply for artificial-intelligence innovation" that supports the military's work. The filing reportedly tied that work to active operations, including the conflict with Iran.

It is an unusual move. A nuisance-and-permits case brought by a civil rights group is being met with a claim that the data center is a piece of critical defense infrastructure. The DOJ had signaled in late May that it might intervene; the dismissal push is the escalation.

Why it matters beyond Memphis

The case sits on a fault line the AI boom keeps exposing. Training and running frontier models takes enormous amounts of electricity, and companies are building their own power plants to get it, often faster than local permitting can keep up. We have written before about how data centers are rising in places already short on resources. The new wrinkle here is the legal shield. If a company can recast a compliance dispute as a national security question, the usual environmental checks get a lot harder to enforce.

None of the underlying facts about the turbines have been resolved. The court still has to decide whether to dismiss the suit, and the residents who filed it still breathe the air around Colossus 2. What the government's filing makes clear is how much weight Washington now places on keeping the largest AI systems running, and how far it is willing to go to argue that the lights, and the turbines, must stay on.