Originally Posted by
bocastephen
SecureFlight (I will be posting the actual data points soon, as promised) is being designed as an informational loop-back to RealID. In a nutshell, you will be assigned an ID 'number', which will be connected to your PNR and tied to your name, DOB, address, social security number and other data points collected.
Not everyone flying in the US is a US citizen or resident. What if someone doesn't have these data points to provide?