Gives me an idea, next time I'm coming to the US, I should bring a stack of thousands of printed paper wallets of many different cryptocurrencies with only dust in all of them and declare that I'm holding crypto assets. Just in case they ask how much, I should have some crazy big sounding (albeit actually worthless) ones, like "1 million i0Coin". The dudes will have to spend hours figuring how to check the wallets and scanning everything only to find that I was only holding a grand total of 10 bucks worth of crypto :).

If we all do that, they'll quickly give up trying to figure.