How does air travel in the United States look today? was discussing this with a friend today...there is so much talk about how easy security used to be, and how much easier the airport experience was.

How would the pre 9-11 airport experience mesh with today's online world? For instance, you still had to show ID at the check-in counter to receive your boarding pass in the pre-9/11 world. what about now with print at home and scan your phone, etc.?

Just curious how today's mobile and digital world would have (hypothetically of course) matched up with pre 9/11 security procedures and airport experiences.