Variant on same subject
https://www.amren.com/news/2014/09/ten-percent-is-not-enough/
...For almost 150 years the United States has been conducting an experiment. The subjects of the experiment: black people and working-class whites. The hypothesis to be tested: Can a people taken from the jungles of Africa and forced into slavery be fully integrated as citizens in a majority white population?...
An interesting article.
Thanks.
L