It's more surprising that DHS keeps copies of the PNR data. The passport/visa stuff is acceptable but you can tell a lot more about someone from PNR data. Who t

It's more surprising that DHS keeps copies of the PNR data. The passport/visa stuff is acceptable but you can tell a lot more about someone from PNR data. Who they travel with, payment information, itinerary, changes in travel, medical conditions, baggage, services, it goes on and on.