[gs17]

> Now, they're using it for facial recognition. They didn't get a facial recognition system by deleting photos, so we know based on the premise that some representation of the data in the photo (your likeness) exists in persistent form.

If we want to be truly generous in interpreting it, the new sample would be deleted and the comparison is done against the photos they have on file from your ID/passport (although, since a foreigner can do it on their first visit to the US, it might just be based on scanning the document you provide). Of course, single-sample-per-person facial recognition is pretty limited, but it's security theater anyways.

[ibejoeb]

That's too generous because even that document says that there that data is used for other purposes without detailing any of that. There are no timelines. Even when they say "temporary," when is that? Until 2300? Temporarily stored on the device until it's been stored remotely? Temporary until the NN is trained?

The cat's out of the bag, anyway. They already have a perfect dataset and surveillance mechanism. But it'd be nice to stop continuing to perfect it.

[duskdozer]

I think the mistake is assuming they're purely doing a 2d pixel array photo comparison and not a 3d scan. This would also satisfy their statement that they delete the photos, while still being able to store data that could be used to reproduce the photos.