@cstross I don't think anyone wants to target Air Force One.
The US response to 9/11 was and is a lot of bad examples and highly suboptimal choices, but also an illustration that the US can and will do whatever it wants in response to a national emotionally significant event.
And that was with notionally responsible long-term planners and aware-of-the-machine imperial apparatchiks in charge of things. With irresponsible grifters in charge it becomes even less predictable.