Let the computer you used for encryption and uploading at home.. Take an empty/new notebook/smartphone with you to show at the border?

edit: place a big random data file, which looks like encrypted data on your alibi notebook. Refuse to give password and let the government lab try to find the password..

> Let the computer you used for encryption and uploading at home.. Take an empty/new notebook/smartphone with you to show at the border?

This is certainly safer, though maybe not possible on the return trip (where you're returning from someplace where you only have access to your laptop). If you need to be this careful, maybe it's best to do your work after livebooting into tails or something like that.

> edit: place a big random data file, which looks like encrypted data on your alibi notebook. Refuse to give password and let the government lab try to find the password..

Funny, but unnecessarily risky if you ask me.

Am realizing that not so long ago, saying that entering a democratic nation was riskyer if, just a few seconds before customs, you had entered in a command line:

   head -c 1000000000 /dev/urandom | openssl enc -aes-256-cbc -a > risky.1Giga.file

would have been considered tin-foil-hatty, and now we're just getting use to it

I think someone was imprisoned in UK for refusal of giving password. Don't joke with government.