This week, as the administration is preparing to roll out the US travel ban, the Obama administration is seeking to improve the system that allows people to enter the US.
The system relies on biometric technology that can be used to identify who is coming in and out of the country.
The US government and other US allies are keen to see the technology used more widely, particularly in developing countries, but they are not without their concerns.
The technology has been used in other parts of the world, including in Canada, where Prime Minister Justin Trudeau recently announced a plan to use it to allow people to buy medical marijuana.
The Trump administration is now seeking to get the system to work in the US more broadly, using the Trump National Security Advisory Council’s report on biometrics.
It recommends the DHS get a federal patent and start using the technology in the biometric passports that will be issued under the travel ban.
The report is the product of an effort by the Trump administration to address a number of security concerns and security vulnerabilities, including the biometrical passports.
The report does not identify specific countries, and the White House did not immediately respond to a request for comment on whether the US has any plans to use the bi-national passport system.
The DHS is not alone in looking to biometrically-identify travellers.
The UK government, for example, is planning to use biometric IDs on a wide range of its public transport services.
And as we approach the end of Trump’s presidency, the White Houses transition team is already looking to the biometer technology to make its travel ban more effective.
The Trump transition team also proposed that the US Department of Homeland Security “provide biometric credentials to all US government employees” and that DHS “ensure biometric identifiers are readily available for all government employees who enter the United States”.