Wired: “Broadly speaking, the US intelligence and defense communities would possess four different categories of files that might be considered “nuclear documents”: nuclear weapon science and design; other countries’ nuclear plans, including the nuclear systems and command of allied nations (UK, France) and adversaries (Russia, China, North Korea, Iran), as well as countries whose nuclear programs exist in a more gray zone (Israel, India, Pakistan); details on the United States’ own nuclear weapons and deployments; and details on US nuclear command & control procedures, known in Pentagon parlance as NC2.”
“Each category of these documents would carry with it some unique classification peculiarities. And all of them exist at the so-called Above Top Secret level, because a simple Top Secret clearance on its own isn’t enough to access the files.”
