https://ia801403.us.archive.org/22/items/gov.uscourts.cand.2...
Excerpt:
> Disclosure of this classified information would risk informing adversaries of the specific nature and operational details of the Upstream collection process and the scope of the NSA’s participation in the program. Notwithstanding the unauthorized public disclosures made in the recent past and the Government’s subsequent releases of previously classified information about certain NSA intelligence gathering activities since 2013, the Court notes that substantial details about the challenged program remain classified. The question of whether Plaintiffs have standing and the substantive issue of whether there are Fourth Amendment violations cannot be litigated without impinging on that heightened security classification. Because a fair and full adjudication of the Government Defendants’ defenses would require harmful disclosures of national security information that is protected by the state secrets privilege, the Court must exclude such evidence from the case.
So the court isn't ruling on whether NSA surveillance is constitutional. They're saying NSA surveillance is too secret for them to be able to rule on, because state secrets privilege.