And it absolutely is a crime to export huge amounts of undeclared cash. Again, a major part of the article.

Think about it -- if large amounts of undeclared cash are being exported, then they're probably both criminal proceeds and haven't had taxes paid on them. And the government wants to stop both.

It's actually the government on the import side that may be less interested. As in this very article. Governments are less likely to be complaining about money coming in.