Old article, still relevant today.

U.S. Accidentally

Releases List of

Nuclear Sites

The federal government mistakenly made public a 266-page report, its pages marked “highly confidential,” that gives detailed information about hundreds of the nation’s civilian nuclear sites and programs, including maps showing the precise locations of stockpiles of fuel for nuclear weapons.

https://www.nytimes.com/2009/06/03/us/03nuke.html