Imagine, for example, a case is about someone disclosing the location of nuclear arms to their spouse. Maybe even accidentally. If they are brought up on charges about this, national security doesn't want the fact that a case is about nuclear weapons to be public information. They further don't want it disclosed who was told about them (as the spouse wouldn't be subject to charges). That's basically where a secret interpretation and ruling would ultimately enter. The courts can't disclose what the ruling was nor what the case was even fully about.
The location of most US nuclear weapons are public. Moreover, if you suspect that the location of some you intend to be secret may have been compromised then the obvious sensible response is "move them" rather than "keep even the legal theory of the case a secret forever".
This is why the primary ones whose location is intended to be a secret are on submarines -- submarines are easy to move around.
They could even redact larger portions of the case and still release the interpretation in some form.
All it takes is 1 accidental redaction or someone who did something silly like using a black highlighter on a PDF and now where the nukes are stored is public information.
There's also simply information that can be gleaned just based on the location that the hearing is taking place. This came from x court in x district, well then it's likely a nuclear silo is roughly in that county or surrounding counties.
The specific location of the court, and even identity if the judge, can be redacted. We don't have to use the case as precedent.
Its still pretty lame and shows vast incompetence on all levels. Maybe I am a bit naive but correct solution is to tackle underlying problems, not just give up because thats what you basically suggest.
Claude was able to work out who it was in less than 10min based on stringing together facts that remained and seemed irrelevant. Journalists uncovered the identity independently using different means. (The ability of Claude to do this was not revealed until the other journalists had gone public and confirmed the identity.)
Yet for some strange reason folks think secret agencies are bound by the same laws as regular police officers.
At least in nazi Germany, the state was explicitly designed like that. Most people should never come into contact with the prerogative state and spend their lives in the normative state, as capitalism doesn't work well in a prerogative state. You need to believe that punishment doesn't come arbitrarily in order to follow the rules.
But of course, things are very different in the prerogative state, where actions have unclear consequences.
But I can't see a public benefit to keeping the principles such a court uses secret