A quiet but consequential shift has taken hold in the movement of people between two long-allied nations. As of mid-2026, Americans seeking entry to the United Kingdom no longer carry their permission in their passports — they carry it in a database. The familiar visa sticker, that small rectangle of bureaucratic certainty, has given way to an eVisa: a digital record, invisible to the eye, accessible only through a government account. In replacing paper with encryption, Britain has asked travelers to place their trust not in what they can hold, but in what a border officer's scanner will find.