Close but a lot of this, as Sen Wyden points out, turns on how NSA and DoJ lawyers define terms. So you get situations where bulk collection of communications of Americans to Americans into a data center isn't considered interception until a human looks at it. There's so much we don't know because the policies/legal interpretation and the FISA court rulings on them are secret. Sen Wyden tries to warn but he can only hint at the real dangers and policies

An important consideration is that just the graph of who talks to whom can be quite powerful:

https://kieranhealy.org/blog/archives/2013/06/09/using-metad...