The legislature has known or voted for this. The proper representatives have been advised and have known- and been able to keep their mouths shut. the warrants have been alleged to approved by the judiciary.
Now, there certainly is the issue of whether our rights are being violated. Not to me if legislature approved and had oversight and courts participated in true due process for the warrants, whether we like it or not. Warrants are never publicly published before the fact of seizure or arrest. This does not appear to differ. The 4th protects against UNREASONABLE search and seizure, not all search and seizure.
Personally, I am not surprised or bothered by this as long as there has been both legislative and judicial oversight. If the secret warrants are truly the "least restrictive means" of obtaining info covertly, then I feel this is not unlawful per se.
rfenst wrote: