[NukeMan]

Yes, the newspaper title is a bit hyperbolic; I guess it's only natural to want to pump up the importance of the find. Presumably there may exist other undiscovered jumping-off points further away. I don't know how large the Ushki Lake site is - what is the boundary of land considered 'only' 13k years old and thus too young to support migration from that area?.

[Dog Gone]

blam has read more about this whole issue than I certainly have, and he's posted several articles about it in the past.

I really don't know. I think it's pretty clear that humans were relatively late arrivals to the Americas. Whether that was 13,000 years ago or 40,000 years ago is an interesting question. But it's more a matter of historical curiousity than determinitive of anything else.