So, if ~~1%~~ 2-5% of idiots travel to USA and get their DNA taken & saved in a database, estimations say, that 100% of EU citizens could be identified, if I'm not wrong.
This is so f*cking scary. But it already was before with this 23andme or FamilyTreeDNA-shit.
Edit: corrected statistics
https://www.science.org/cms/asset/089c0893-0dc3-4668-be4a-cff6d3915fad/pap.pdf
Since I don't know about newer studies, I will correct myself to 2-5% to identify the rest.
My 1% came from a german source (Question at the Bundestag by Die Linke-party) which could still be correct though:
https://dserver.bundestag.de/btd/19/040/1904087.pdf