Does this hypothesize the lack of a functioning court system to issue a search warrant, the lack of observing the Fourth Amendment in the US (or equivalent in many other countries), or both?

No hard and fast rules. Like obscenity, a reasonable person believes the situation warrants it when they see it.

So evidence obtained illegally outside of due-process is fair game in your book?

I guess by saying "when due process failed" kind of makes it so since by definition it "failed".

>So evidence obtained illegally outside of due-process is fair game in your book?

So evidence of horrible crimes should be ignored if subjective "due-process" isn't followed? You do realize that the moneyed elite have disproportionate influence over "process" and law, right?

Focus on the leaks and whether they are true, not the messenger.

The "horrible crimes" of following the applicable tax laws. Got it.

I'm not focusing on the messenger. I'm questioning the ethics to violate the privacy of private individuals to try to score political points.

You're not advocating for modeling our actions, social interactions, behaviours, and relationships after our criminal justice system, right? Also you're not advocating for an equivalentcy between judicial evidenciary procedure and information gathering, and judicial due process and social due process, right?