Wonder if they have a backup ID method of some sort or if it’s solely iris data

So, I would expect them to have captured a seriously significant AND deduplicated (through the iris) database of faces as well.

Obviously, this is an extremely valuable database on its own merits, because it contains biometric data on a ton of people from "non-restricted" countries and may well solve some of the systemic biases current biometric systems show, due to lack of a representative dataset to train on.

These systemic biases are currently one of the major arguments _against_ the use of biometric systems at an even bigger scale and thus solving it will take away a big tool in the privacy-rights activists toolbox.

Are biases still systemic if at one point a significant amount of people from every geographical location on the planet has been included in the training set?