I'd been thinking about a similar thing: a "limited access for border guards" mode. Basically, you can turn over the phone to border guards in a way which give

I'd been thinking about a similar thing: a "limited access for border guards" mode. Basically, you can turn over the phone to border guards in a way which gives them access to what is on the phone, but which logs actions, and allows you to easily revert/revoke any changes they make. (This would also be a mode you'd turn over to an employer demanding access). Potentially this mode might also block access to certain things (secret FB groups, archives over a certain age, some chat logs), but would otherwise be fully functional. The benefit would mainly be that all actions taken would be logged and reportable, as a way to try to keep authorities from poking in places they shouldn't. It seems they are NOT mostly using forensic imaging tools, but logging in directly on the devices, at least right now, so there would be some value.