Highway 61
Revisited
In October 2018 I went through Washington Ronald Reagan and Chicago O'Hare airports machines with a fair amount of Fuji Neopan 400 films in my cabin luggage.Why not? In the U.S. you can get hand checks without problems, so there is an existence proof that it can be done.
No fogging on my negatives so I guess the new machines hadn't been installed there yet ? Those airports are on "the list" onwards from now. Uhuh.
At Washington Ronald Reagan, that was the control guy himself who kindly asked me if I wanted to benefit from a hand check of films because he had noticed my old Nikon rangefinder camera around my neck, and this was me who politely declined because I had no concerns about my 400 ASA films going through the cabin luggage machines, as usual...
So I can at least confirm that in this airport, hand inspection of films this can be asked and obtained with no hassles.
I wouldn't be that confident about other airports and for instance European airports once the new machines are everywhere.
Monitoring the new machines location and not taking films to go through those airports is the only secure solution that I can think of as for flying.
Other solution is to travel by train instead of by plane. After all, once upon a time it was pretty easy for any destination within a 1,000 km radius. But - the times, they are a changin'... 🙄