The fact that a particular nuclear weapon has (or does not have) a “dial-a-yield capability” enabling the selection of a desired explosive yield was declassified earlier this year, in a joint decision of the Department of Defense and the Department of Energy.
Last year, the Department of Energy also declassified the thickness of the “getter nickel plating” used in tritium production. (A “getter” here means the reactive material that sustains a vacuum by capturing gas atoms.)
These and several other recent DOE declassification decisions were recorded in memoranda that were released last week under the Freedom of Information Act. Copies are available, along with the records of prior DOE declassification actions, here.
To empower new voices to start their career in nuclear weapons studies, the Federation of American Scientists launched the New Voices on Nuclear Weapons Fellowship. Here’s what our inaugural cohort accomplished.
Common frameworks for evaluating proposals leave this utility function implicit, often evaluating aspects of risk, uncertainty, and potential value independently and qualitatively.
The FAS Nuclear Notebook is one of the most widely sourced reference materials worldwide for reliable information about the status of nuclear weapons and has been published in the Bulletin of the Atomic Scientists since 1987. The Nuclear Notebook is researched and written by the staff of the Federation of American Scientists’ Nuclear Information Project: Director Hans […]
According to the National Center for Education Statistics’ August 2023 pulse panel, 60% of public schools were utilizing a “community school” or “wraparound services model” at the start of this school year—up from 45% last year.