We all have our "ULTIMATE AUTHORITIES" Thousands of Veitnamese children were brought back as full citizens!!!
Yep, all due to that pesky clause in the U. S. Constitution that gives Congress full authority to determine who needs to go thru a formal procedure of "naturalization" to be a citizen.
(Poor old Vattel must be turning in his grave to know that the Founding Fathers allowed Congress to ignore his diktat re citizenship.)