No sterile transit [1]. That's it for me. That's why I will pay extra to get a flight that does not require changing within the US. Everywhere else [2], if I a

No sterile transit [1]. That's it for me. That's why I will pay extra to get a flight that does not require changing within the US. Everywhere else [2], if I am on my way from country A to country C and will be changing aircraft in country B, I follow the sign for "International Transfers" and effectively just walk from the gate at which I got off one aircraft to the gate at which I will get on another (an airport in Europe somewhere - can't recall which one - even managed to provide me with sterile transport to another terminal to do this; half the train was isolated by locked doors from the other half, and my side of the platform had different entrances and exits that were already within the security-checked section). No security checks necessary because I went through them in airport A, no immigration because I'm not entering country B. To force me to go through immigration and then turn around and come back through the entire security theatre again is such a massive waste of everyone's time and resources. So painfully frustrating. [1] I hear that a handful of US airports can actually manage this, but generally not. I recall having to go through immigration at JFK many years ago purely to be able to walk across the concourse and go back through the system again, just to change plane. What a massive waste of everyone's time and money. [2] Not quite everywhere else. Of all airports, I had to go back around through some security in Dubai just yesterday. Which is utterly ridiculous, as Dubai airport is a shiny modern airport that is in many other ways very good.