User blog comment:Semanticdrifter/Understanding Fair Use/@comment-1142365-20121128155623/@comment-168424-20121210190714

Technically, since Wikia is a U.S. company, any wikis hosted by Wikia are by definition U.S. wikis, regardless of their content or where they are served from. For this not to be true, Wikia would have to have no data centers in the U.S. or specifically host non-U.S. wikis outside the U.S. and not share any hosting with U.S. data centers.

I'm not a lawyer, though, so there could be some loophole that I don't know about. U.S. law is full of loopholes.