The Energy Department picked five nuclear startups -- Oklo among them -- to work out how to burn America's surplus Cold War plutonium as reactor fuel. It reverses a plan to dilute roughly 20 tonnes of the weapons material and bury it in the New Mexico desert. The stuff has a 24,000-year half-life and sits under guard in South Carolina, Texas, and New Mexico. Oklo's stock jumped on the news.

1. Turn Cold War Waste Into Power, Baby (the administration + the startups)

Why bury good fuel? Plutonium is energy, not garbage.

A 24,000-year liability can be an energy source instead of a hole in the ground. That's the pitch from the Energy Department and the five firms it tapped: the surplus plutonium is "bridge fuel" that can get advanced reactors running sooner, just as electricity demand spikes.

Plutonium headed for the desert can make electricity instead. Oklo CEO Jacob DeWitte calls it a pathway to bring more reactors online sooner, and his partner newcleo says burning the plutonium would actually shrink the government's nuclear cleanup bill.

2. This Is Seriously Risky (Markey, Beyer, Garamendi)

You don't scatter weapons-grade plutonium into private hands and call it energy policy.

Twenty tons of weapons-usable plutonium is enough for roughly 2,000 bombs. Sen. Ed Markey and Reps. Don Beyer and John Garamendi asked the DOE to kill the plan, warning it "raises serious weapons proliferation concerns" and could weaken the nation's defense posture.

The optics don't help: the Energy Secretary used to sit on Oklo's board. Markey flagged that Chris Wright was an Oklo director until his confirmation, and the company is now first in line for the plutonium. The DOE says Wright resigned, never owned stock, and follows every ethics rule.

3. We Tried This and Burned $8 Billion (cost-and-feasibility skeptics)

The last plan to turn plutonium into fuel was a money pit. This is the sequel.

The government already spent about $8 billion trying to turn this exact plutonium into reactor fuel -- then gave up. The MOX plant in South Carolina was supposed to cost $5 billion, blew past $17 billion, and the government cancelled it in 2018. "Dilute and dispose" was the cheaper replacement Trump is now scrapping.

The watchdogs say the old plan was safer and far cheaper. UCS scientist Edwin Lyman argues the DOE should stick with diluting the plutonium and burying it, and the startups picked to reprocess it don't have a single commercial reactor running yet.

Where This Lands

There's a real case that burying usable fuel for 24,000 years is its own kind of waste -- a government sitting on tons of plutonium might as well get power from it. There's an equally real case that handing weapons-grade material to unproven startups turns a storage problem into a security one, and revives a plan that already cost $8 billion and a decade. The plutonium will outlast everyone arguing over it. Washington just bet its next chapter is a reactor, not a hole in the desert -- and the startups now have to prove that bet isn't an $8 billion mistake on repeat.

Sources