The word “radiation” doesn’t appear in the U.S. Atomic Energy Commission’s official rules for how nuclear materials should be handled.
But the agency has long allowed the materials to be buried underground for reasons that range from aesthetics to security concerns.
The rules allow the agency to allow the materials buried as long as the material is not radioactive.
In the early 1990s, radioactive materials were allowed to be stored in an underground bunker in New Mexico for decades as a means of protecting the country’s critical infrastructure.
Sources: CBC News, The New York Times, U.K. Atomic Scientists, Reuters, Canadian Nuclear Information Centre