u.s. border guards have used this tool, known as passenger name record, or pnr, for 15 years.ut european politicians, concerned about privacy and data protection, repeatedly rejected pnr legislation. >> madam president of the council, read my lips: data protection directive. >> we have, you know, maybe a different privacy mindset in certain countries in europe compared to the u.s. it depends on the different cultural historical political backgrounds of each country, and they are different. >> narrator: rob wainwright is the director of europol, the agency tasked with coordinating law enforcement across the 28 countries of the european union. >> the privacy-security trade- off still goes back, i think, to the legacy from the second world war where, you know, german and austrian citizens are concerned about never again shall we arrive at a position where the state can have so much authority that they can collect unlimited amounts of personal data about their citizens. and for good reason, actually. >> narrator: but, counter-terror chiefs say despite the concerns, pnr would help