@aral just a reminder, part of the standard process in the USA in births, is to take a blood sample of each newborn and put it on a card for storage, at least in theory kept completely separate in identity, from the actual birth certificate, these cards are kept permanently by the government.

But as for decades all hospitals/birthing centers have used cameras, even without tracking codes to match people, video can be used to connect & thusly create a full database.

These cards can pretty easily be used to get the DNA for sequencing and thusly if it hasn't already, the government can have a full genetic database of all natural born US citizens, whenever it wants one...