New Source of the Ancient Americans?

The source of the American Indians seems to be one of the major things that the Book of Mormon is pinged on. I think that this article underscores how poor a source this argument is in either supporting or disproving the validity of the Book of Mormon.

http://news.nationalgeographic.com/news/2008/09/080903-oldest-skeletons.html

Clues from the skeletons' skulls hint that the people may not be of northern Asian descent, which would contradict the dominant theory of New World settlement. That theory holds that ancient humans first came to North America from northern Asia via a now submerged land bridge across the Bering Sea (see an interactive map of ancient human migration).

"The shape of the skulls has led us to believe that Eva and the others have more of an affinity with people from South Asia than North Asia," González explained.