Apple users are one step closer to being able to viably travel around the country with nothing but an iPhone in their pocket. Once uploaded, iPhone and Apple Watch users can present their Digital ID to pass through TSA security checkpoints at 250 airports in the US. With the addition of Digital ID, Apple users can store digital versions of passports, driver’s licenses, credit cards, and even car keys in the app. Once authorized, the Apple device transmits an encrypted payload containing the approved data to the app or website. Globally, Capital One estimates around 4.3 billion people have used digital wallets.