PBS's NOVA had a good episode on this a few weeks ago.
I was extremely bothered by the idea of the pre-historic French getting the credit
not only for floating to North America, but even for creating the Clovis point.
You mean this?
Have you seen the latest from the Topper site in South Carolina? Goodyear (archaeologist) is reporting dates of human occupation exceeding 50,000 years. (It was posted 3-4 times on FR)