Comment by advisedwang
Comment by advisedwang 13 hours ago
They have faces for every US passport and for every/many[1] REAL ID drivers license. They only have fingerprints for some people that have been arrested and aliens that were admitted into the country.
[1] I'm not sure if REAL ID means the feds get access to driving license details or if there's just a lot of states that share this data voluntarily.
Sometimes CBP will take your fingerprint even for US citizens that enter the country. They did it to me (forcefully) even though I appeared with valid US passport.
It's my understanding they don't need a warrant for biometrics upon entering the country.