The great man is Edward Snowden, and the adjective “great” may not do him justice. From Andrew P. Napolitano at ronpaulinstitute.org:

When the Trump administration obtained an indictment of Edward Snowden for violation of the Espionage Act of 1917, many of us who believe that the Fourth Amendment means what it says were deeply critical of the government, and we remain so today.
Snowden is the former CIA and National Security Agency operative — he was a CIA agent and was later employed by a contractor for the NSA — who blew the whistle on NSA and FBI mass undifferentiated warrantless spying on all persons in America.
The spying consisted of capturing all fiber-optic data that was transmitted into, out of and within the United States. As no warrants were sought or obtained and no targets were named — hence, the spying was mass and undifferentiated — it captured the communications of everyone. The government did not bother to seek out evidence and target those as to whom it found probable cause, as the Fourth Amendment to the Constitution requires.
The Fourth Amendment was written to keep the government out of our private affairs and off our backs and to force the government to stay in the lane of probable cause of crime. Thus, with the requirement of probable cause — evidence that a crime was committed and it is more likely than not that execution of the warrant will produce more evidence of that crime — the Fourth Amendment explicitly outlaws general warrants that permit the bearer to search wherever he wishes and seize whatever he finds. The amendment requires every warrant to describe specifically the place to be searched or the person or thing to be seized.
He’s more free than we are.
Still love that scene in the Snowden movie where the spook RAT says the people don’t want freedom.
This is why we can’t have nice things.
BTW-Holy Rus has never been conquered.