alt Hacker NewsCustoms as it existed a few decades ago barely exists in many/most countries today except pro-forma. You used to routinely get your bag searched. Now, with very few exceptions, you just walk through the green door. Part of it (of course, this may change) is that there used to be a lot of financial incentive to buying items abroad and importing in your luggage.
I have Global Entry but I don't think the US even has a customs form any longer.
>a lot of financial incentive to buying items abroad and importing in your luggage
>very few exceptions
You've got it backwards. If you're an American you're probably traveling through freeports or low tax regimes like Singapore, UK, etc. and don't realise how regressive most regimes are. In places like Hungary, Angola, SEA -- where tax can be in the range of 30-50% you will be lucky not to be shaken down by a customs agent before leaving the luggage carousel.