Exactly my thoughts.
Between the trinity of the FBI (the lawmen who believe that 'The Ends Justify The Means'), the NSA (the math nerds who never stopped to think how their beautiful theories could be misused before developing them), & the CIA (the spies for whom psychopathy, sociopathy, & megalomania are considered mandatory character traits to even be considered for employment at said agency), there's no chance in hell they aren't already using something similar...which will be revealed in 200 years time, when it's judged too old to be considered an embarrassment for our country.
It might as well have been taken from an episode of the BOFH (http://bofh.bjash.com/Bastard1998-2.html, for those who are interested):
"As far as anyone else is concerned, we don't keep phone logs - it's not possible."
"And as far as we're concerned?"
"Every call, duration, and destination plus its position in the voice recorder tapes. And as for the tapes - liberal use of the muting functions makes it appear that we're only recording the traders."
"And in actual fact?"
"All but one line is potentially recorded..."
"All but one?"
"The one in the comms cupboard labelled "Faxmodem" that we use for our international personal calls."
And it's true. Having worked the vast majority of my life in the IT industry, you'd have to be an idiot not to believe that there aren't quiet backdoors in every piece of hardware / software in use today; that your 'papers & effects' aren't being scanned and read at least twice every day by *cough* interested parties *cough*; and that every gesture make / word you speak (in an open air environment, not just on the phone) isn't being quietly recorded somewhere.
For years, people derided / openly mocked as paranoid those who said the NSA was listening in on every phone call; and lo and behold, when it was revealed that the NSA really was recording the average American's phone calls...silence. A brief acknowledgement that they had been wrong to deride / mock 'the paranoid'...but no real outrage / social condemnation & upheaval of the NSA's actions...just a muted acceptance. "Oh, so they were doing that"...years later, and they're still doing it! If anything, with the growth of technology (the proliferation of potential recording devices (cellphones, TVs, watches, cars, you name it), the growth of an entire private industry based around generating & receiving telemetry from various places (and reselling that data to whoever wants it), etc.), they've expanded!
I'm going to come and say something that many people will find offensive. You, Americans (read: citizens of the United States of America), do not DESERVE your constitutional rights! Your muted response when confronted with the actual truth, your eagerness to sign away both your fellow citizen's as well as your own privacy, your willful naivete that learning & understanding technology (and how its application is potentially affecting you) as someone else's problem...you do not DESERVE your constitutional rights...and surprise, when you need them most, they have / will have eroded away to dust!
At the end of the day, the Constitution, reputedly the highest law of the land, is just a (actually, several pieces of) paper, written by thoughtful, and I believe for the most part, well-intentioned, but imperfect, people hundreds of years ago. It's just paper...it can't sound an alarm when its under attack, it can't raise an army to fight a war on your behalf, it can't really do anything, but lay there on a table, or hang there on a wall.
It's people, who want to believe in its words, who are willing to stop what they are doing, even if they've been doing it for a while, and say, "No, I can't do this, I can't go along with this anymore...it's NOT RIGHT...", who grant the Constitution its power, who guarantee your rights, when you need them...not with words, but with actions (or inaction). The majority of the people must believe, and work according to those beliefs, in the Constitution, in order for it to be upheld. And that's really being put to the test these days.
I hold no illusion, at this point, that things here in the US are going to get bad, real bad, before they get better. The mask / facade has slowly been chipped away, and it has become apparent that the law of the land is "Do as I say, not as I do"; perhaps it has always been that way...but in time, people won't even question that it has ever been different.
As an aside: I keep a personal journal on my One Drive; just some of my thoughts and musings; I have no doubt that it is insecure, and despite being one of my 'papers', could / will introduced as evidence against myself by various parties if & when that event occurs; I just want to say, here and now, that if & when that does occur, I knew that that would happen, and wrote it that way anyways. I wrote it, with full knowledge that it could be used against me some day; moreover, I wrote it with the idea that it would be read by (adversarial) others at some future date. ;-)