For John, BLUF: As you note, the Government has been spying on us for a while. Nothing to see here; just move along.
The Volokh Conspiracy takes us back to the Bush Administration and 2004 and "domestic spying". The title is "Did the Definition of “Pen Registers” Lead to the Goldsmith/Comey Threat to Resign in 2004?" As Qoheleth says, "Nothing is new under the sun." (Ecclesiastes, 1:9)
Leakers help the US Congress understand what is going on and what questions to ask during hearings.
Hat tip to the Instapundit.
Regards — Cliff