You can't refuse to be scanned by ICE's facial recognition app, DHS document say

This is going to be a huge pain. The US has a very fragmented identity system, and "move fast and break things" approaches like this to bring information from across government systems well outside the scope of what that information was collected for will result in real problems.

I worry what this app and systems like it might mean for me. I'm a US citizen, but I used to be an LPR. I never naturalized - I got my citizenship automatically by operation of law (INA 320, the child citizenship act). At some point I stopped being noodlesUK (LPR) and magically became noodlesUK (US Citizen), but not through the normal process. Presumably this means that there are entries in USCIS's systems that are orphaned, that likely indicate that I am an LPR who has abandoned their status, or at least been very bad about renewing their green card.

I fear that people in similar situations to my own might have a camera put in their face, some old database record that has no chance of being updated will be returned, and the obvious evidence in front of an officer's eyes, such as a US passport will be ignored. There are probably millions of people in similar situations to me, and millions more with even more complex statuses.

I know people who have multiple citizenships with multiple names, similar to this person: https://news.ycombinator.com/item?id=45531721. Will these hastily deployed systems be able to cope with the complex realities of real people?

EDIT: LPR is lawful permanent resident, i.e., green card holder

Kristi Noem says no US citizens have been arrested so it's all OK, right?

If you're white British with an accent from our shores, you don't have a very serious problem. Sure you could get locked up somewhere away from a lawyer for a few days which is terribly inconvenient —- that clearly is happening to British citizens -- but nobody is going to pin you to the ground until you can't breathe. We appear to be getting the benefit of some doubt (unless we have opinions).

And if you are white and have an American accent you're going to be ignored entirely anyway.

Perhaps carry any paperwork you need, definitely carry any medication you'll need for a few days.

As to whether the officer will ignore evidence presented: that is clearly what they are being told to do. There are lawful citizens carrying their papers with them and there's video of an ICE agent mockingly saying "what papers?"

Because on the ground it's not about immigration status really, it's about race and white power and sheer numbers of arrests to meet Stephen Miller's quotas.