This opinion is just nuts. Trust a court that you were told for years didn't even exist? A secret court? How about no.
Secret courts lead to abuses: https://www.opendemocracy.net/ourkingdom/jo-shaw/secret-cour...
What is secret about the FISA Court is its decisions, not its existence (and that should change slightly as a result of the USA Freedom Act's requirement to release "significant" opinions).
Interestingly, regular courts can and do hear cases involving classified information.
https://en.wikipedia.org/wiki/Classified_Information_Procedu...
It's not that cases involving classified information somehow get transferred to the FISA Court; instead, the FISA Court only hears cases involving surveillance requests arising under FISA.
Because the only way to oversee top-secret data is with a top-secret court.
Not only must justice be done but justice must be seen to be done.
If we can't audit or inspect the courts then there is zero assurance they are acting in a lawful or moral manner.
The whole point of courts is so that people can't make shady deals in back rooms.
That army that you keep on claiming is yours is closer politically to libertarian than you are to the army.