As a police officer friend of mine told me many years ago "If I want to pull you over, there is nothing you can do to stop me. All I have to do is follow you for one mile and you're going to violate some portion of the traffic code."
I'm not defending this at all, as I think it is outrageous and that the link to harvested NSA data is beyond the pale . I'm just pointing out that this is, as the article mentioned, de rigueur, and when a technically legal starting point is provided, the defense likely almost never challenges that, thus eliminating the need for the prosecution to take a formal stance on the origin. Hopefully this begins to change.