A U.S. Customs and Border Protection officer greets international passengers at Miami International Airport in February 2019. (U.S. Customs and Border Protection / Flickr) National Vetting Center piloting automation of citizenship verification “We want to make sure that we are protecting privacy, to the extent we’re supposed to, when it comes to U.S. persons," said a DHS official. Apr 5, 2022 By Dave Nyczepir