[rpedroso]

IANAL and I don't have an answer to this, but I would be deeply alarmed if this were the case. I can understand them making the case that anything on your personal is searchable (though I disagree that this should be allowed).

By asking you to sign in and sync, they're not just requesting access to information on your person -- that's an enormous expansion of their search powers.

[mtgx]

I mean, aren't they forcing you to give Facebook passwords now?

https://www.cnet.com/news/us-border-agents-facebook-twitter-...

[ben_jones]

Isn't it established that they'll ask for social media credentials which sync old data automatically?