New book says Europeans discovered America 24,000 years ago

[Daily Beast]  Across Atlantic Ice suggests that America’s first explorers came not from Asia but from Europe. The authors, Dennis Stanford and Bruce Bradley, point out that spearheads and knives made from pressure-flaked flint found throughout the U.S. have no correlation with those found in Siberia, or even Alaska. Yet they do resemble tools made by the Solutreans, who lived 24,000 years ago in France and Spain.