Comment by docdeek

Understood - but most EU states would have a national ID card which would make them ‘known’ to their own government. Not sure if all include biometrics (I know that the ID cards here in France are not all like that, though passports today are) but national ID cards cover all adults and children. Just seems weird that they would not include a couple of hundred million people that they definitely know something about by virtue of their citizenship of an EU country.