Anatolia the homeland of the Indo-Europeans?

An evolutionary biologist, Quentin Atkinson, using statistical methodology, has shown that Anatolia must be the homeland of the Indo-Europeans. However, his findings are contested by others, who claim — primarily because of the presence of the horse among the Indo-Europeans — that the steppes of Russia are their homeland. Read the New York Times account of this controversy:

http://www.nytimes.com/2012/08/24/science/indo-european-languages-originated-in-anatolia-analysis-suggests.html?_r=1&emc=eta1