The problem there is that entry requirements must be checked EACH time, not just once. Residency changes, passport expire, visas get used up or expire, people have gender changing surgery....so while a 1 time check would be nice, were you born a french resident, or did that change? I believe the US "green card" is only valid for 10 years (just a gues...not sure) and we don't store or forward resident alien criteria, we just verify that it exists, and local immigration authorities may store it. The only data that we upload is passport (or passport replacing doccuments such as refugee paperwork, nexus cards...)

On one hand, it would be nice to have the legal authority to be immigration agents and store all of your data, but big brother is everywhere already, and I am not in love with the idea of corporations having all of my personal data. Too many data miners out there. If corporations want be 411, they can pay me for it!