Ken I have provided links to critical views of Wade's work. I have yet to receive any sensible response from anyone explaining why they disagree with the technical points raised in those critical reviews. As you seem to be the only person who has even attempted to read the book perhaps you can enlighten me and point me to the scientific papers which are supposed to support Nicholas Wade's view that there are distinct biological races. James Watson, as I'm sure you will know, was forced to retire early after making racist comments: http://www.independent.co.uk/news/science/fury-at-dna-pioneers-theory-africa ns-are-less-intelligent-than-westerners-394898.html It's not surprising that he endorses Wade's book. I'm not familiar with the other two scientists, but population geneticists have uniformaly denounced Wade's book. Wade's education and work history are somewhat irrelevant. The focus should be on the arguments. No one has yet provided any evidence in support of Wade's arguments. Debbie