The half-Jewish author of this book reminds one of Louis Farrakhan, the black leader who is also half rational; half delusional. Bradley does a good job of establishing the reality of the Khazar conversion to Judaism, then jumps off the deep end. He asserts that the cold temperatures from which the Caucasian peoples came made them neurotic, overly aggressive and war like (just as, one supposes, the warm temperatures of Africa made blacks incurable banana brains, not inferior black genes). He then tells us , correctly, that Jews are a menace to the world but blames it on fanciful anthropological theories rather than Talmudic scriptures.
It is entertaining nonsense. Presumably the Aztecs and Mayans of South and Central America froze their obsidian knives before cutting out human hearts. Maybe it was icecicle power which drove forward the hordes of Genghiz Khan (although the frozen hoofs on the horses must surely have melted by the time Hulagu reached Baghdad). How anyone can publish such utter drivel is beyond this author's comprehension.
If one is looking for a competently researched account of Khazar Judaism there are far better places to find it. If, however, one wants an interesting combination of proven historical fact wedded to goofy theories, this is the book for you.