Why isn't the American news reporting that Savoie is a JAPANESE citizen?

4 years ago, Savoie (as his lawyer admitted today) became a naturalized citizen of Japan. This means that 1) He should have renounced his U.S. citizenship, as Japan doesn't allow dual citizenship; and 2) It implies he is the unethical one, since it appears he brought the family to the U.S. specifically to steal the kids away from his wife (at least partially).

I agree, she shouldn't have just run off with the kids, but what he did seems to have ethical problems as well.

What I want to know, though, is why the U.S. media isn't including this critical part of the story? Are they trying to make Japan look bad, or the U.S. look good, or what?