The National Geographic Society is doing a Genographic Study with thousands of participants worldwide.
This will give a much larger sampling of anything previously done and should show migration trends of different peoples by their DNA. The information already gleaned is quite damaging to the LDS claim of Israelite migration to the Americas.
I wonder how the LDS will treat the information when it is released. Anyone care to guess?
No need to guess, colorcountry. The issue has been discussed at length by LDS scholars and scientists. A readable summary is to be found here. Other articles are linked here.
The short answer is that DNA does not (and probably cannot) "disprove" the Book of Mormon.
The linguistic evidence is fairly fatal on that score as well, despite claims to the contrary. I am studying Iroquoian and Algonquian languages now, and it's fairly obvious that their grammatical construction is way way different from anything we see in Semitic (Afro-Asiatic) or Indo-European.
If indeed a group of Jews came to North America and their language was so totally transformed in the course of 2000 years so as to have totally no recognizable relation to the original Hebrew, it would be unparalleled with any similar kind of language change ever observed in history.
By contrast, in the same span of 2000 years Latin only moved as far as Italian, French, and Spanish. Proto-Eastern-Algonquian only moved as far as Abenaki, Massachusett, and Delaware.
Factor in the tenacity with which Jews have held on to their liturgical language no matter where they were dispersed in the world, and I think the theory unravels rather quickly.
Cognitive dissonance?