This has always been a well known rule.
Smartphones and the rules surrounding them at border searches are still pretty new, and they're likely enough to change. I think you might be overestimating the well-known-ness of these customs.
This has always been a well known rule.
Smartphones and the rules surrounding them at border searches are still pretty new, and they're likely enough to change. I think you might be overestimating the well-known-ness of these customs.