Solution:
1. Buy a TREZOR.
2. Create a load of hidden wallets behind additional passphrases.
3. When they look at it, they won't see that you're travelling with >$10,000.
That's not wise, because technically you'd still be travelling with $10000 and no matter how many addresses you create, there might still be a way for the government to detect that you have this much and potentially fine you for not declaring or even confiscate your coins.
The easy solution is to get a 2-2 multisig wallet. Have one redemption/private key as one of your addreses', and the other as one of your family member's or trusted friend's addreses. Don't tell him/her your private key because they can take your coin with ease if thats the case. And when you go to the US, if you need access to coins, you just give them a call and they give you the private key, and you can access your coins. You never really owned the coins this way. Or you could use Chipmixer's new service, but it's based on the same concept.
The new laws are definitely going to negatively impact bitcoin. Though i don't see how it can be enforced. Warpwallets(basically a more secure version of brainwallets) is virtually indetectable.