Residents in the U.K. can now integrate their passports as a digital ID within Google Wallet, allowing for secure age and identity verification. This feature is part of a collaboration with the Rail Delivery Group, enabling train travelers to use digital IDs for select Railcards. Google is also discussing further applications with the U.K. government, such as for alcohol purchases. The digital ID feature allows users to create passes using their passports, which can be verified with a tap on their smartphones, although they do not replace physical IDs and cannot be used at airports. The process involves capturing images of the ID and a selfie video for verification. Google Wallet incorporates Zero Knowledge Proof technology to enhance user privacy, ensuring personal information remains secure during identity verification. Additionally, Google is expanding digital ID access in various U.S. states, allowing residents to add government-issued IDs to Google Wallet and facilitating domestic travel without a driver's license. Future capabilities will include account recovery and access to online health services. Google Wallet will also expand to 50 additional countries, allowing users to view and utilize digital passes.