Maybe that's the point.
It could also be announced because they plan to use it publicly soon, to "prove" that some person they want to get for political reasons is the same as some evil terrorist/pedophile/serial killer.
This is 100% going to happen, so my guess is it can’t be authoritative. It’s likely to be used to whittle down a list so that humans can review the results.
Feels like the beginning of a hybrid Minority Report + Enemy of the State movie. I’d watch that. I don’t want to live in that world, though.
> This is 100% going to happen, so my guess is it can’t be authoritative.
Why do you think that it won’t be authoritative?
That of course has its own risks, if you assume full government access to providers and unlimited surveillance capabilities. If you are fully paranoid you could even run your text through a local instance of (less accurate) Apertium[0] for the first few rounds, or even for the whole process if you find the result is different enough from your original.
An offensive one would be to post fake offers to trade government/military intelligence on the dark web writen in the style of the politicians backing up this measure, so that they are put on the feds list and thoroughly investigated.
Seems like an impossible task. There's just not enough signal to noise ratio to make that distinction. Not if the goal is to distinguish among thousands of people.
Among tens or hundreds, might work if they don't take any countermeasures.
If this works it's pretty much the equivalent of a mandatory state ID on every online interaction. If it doesn't work very well, then it's going to be that, plus the risk of randomly being flagged.
As a society I don't think we have anything to gain from it; it's certainly tech that's put of Pandora's box, but that doesn't mean we shouldn't use all our cultural/legal means to prohibit/control it.
Anyone in their basement could build this today, but it only becomes a problem if that person has control over police and intelligence forces. Which means the potential for good regulation is bigger than with other tech.
Edited to add point about regulation