> There aren't any reasonable justifications for requiring you to bring all information you physically have access to you with you when traveling... regardless

> There aren't any reasonable justifications for requiring you to bring all information you physically have access to you with you when traveling... regardless of the format it's stored in. I think many of us would equally argue there isn't any 'reasonable justification' for forcing phone unlocks on random strangers in airports, but that still happens. I think you are asking for a reasoned distinction from people incapable of drawing them, and that while what you say makes sense, we are not dealing with a sensible system. I can absolutely envisage some asshole airport security staff member causing grief over these kind of features should they grow in popularity - the existing interactions over phone unlocks are already in a weird constitution-free legal grey area in the US, even for US citizens. For foreigners the situation is worse still - basically zero options but compliance, or feel free to go home and never be granted entry ever again.