Amendment IV
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
Note: I added the emphasis. Maybe I'd wish the emphasis would be letters 10 feet high with two pounds of black ink each, but I'm not seeing a way to do that on HN.
Seems pretty clear to me.
Now when I lived near DC, as I recall, the FBI HQ was not far from the National Archives with the original copy and also not far from the Supreme Court where, maybe, the FBI could get some eighth grade civics tutoring on what that part of the Constitution means.
To me, what the part means is, in simple terms, keep your filthy, sticky hands the F off my stuff. That is, unless you have one of those warrant thingies. And I don't even own a mobile device.
I sound pissed off? Right: A lot of really good people fought and died to give us the freedom to write and adopt that Constitution. To track mud all over it now is, in a word, a bummer, and that's putting it very mildly.
The FBI needs to return and repeat eighth grade civics.
I know; I know; apparently some people in the FBI would say that the Constitution was written long ago, and now the FBI has much, much, much more important things to worry about than those old fuddy duddies who wrote that old piece of paper and, besides, they didn't have smart phones then. Some people might say such things, but I don't go along, and we do have a way to get an answer -- that's just what the SCOTUS is there for, in this case for a reading comprehension lesson in eighth grade civics.
That text I emphasized above is difficult to read and understand? Ah, now I get it, for some in the FBI, easy to read and understand but difficult to accept and easy to violate.