Mr. Obama’s Philadelphia speech, in spite of its eloquent passages expressing his hope for better racial relations in America, is a mastery example of literary subterfuge, the broadening of the scenery whereby an object of inquiry becomes blurred and lost in the background, or more bluntly, the escaping of a slippery fish from a pond into a lake to hide in a wider expanse of water. His speech is essentially a sophisticated lawyerly defense of Rev Wright’s sin on the basis of self-defense. While Mr. Obama’s understanding on the root causes of America’s racial problems is quite apt, he attempts...