Permissum international exigo caveo

Japan has enacted a law that makes its consumer protection supercede other countries when Japanese buyers are dissatisfied.

I had to look it up, but the Latin for "let the international seller beware" is appropriate here. Permissum international exigo caveo. According to United Press International:

In order to reduce the perils of Internet shopping, the Japanese government Tuesday revised a century-old law that gives more power to the consumer when it comes to settling international disputes on an individual level. Specifically, legislators approved a bill that will allow disgruntled buyers to have the law of where the product was purchased, rather than dealing with the law of where the item originated from, thereby giving more power to the purchaser rather than the retailer.

That means that if a Japanese Internet shopper has problems with a product purchased from a U.S. Web site, Japanese laws can be applied and the consumer can seek government intervention to further its case. Moreover, Japanese law will be applicable even if the buyer clicked on a box stating that it would accept the retail laws of a specific state in the United States, thus giving more protection to consumers amid intensifying globalization.
This sounds like a simple assertion of local law, but it's going to be virtually impossible to enforce without extensive judicial action, since enforcing Japanese law against an American or European or Chinese company requires the law have some really long arms. Nevertheless, it represents a trans-nationalism of the consumer that will likely shape commercial laws deeply in decades to come.