"I can no more disown him [Jeremiah Wright] than I can disown my white grandmother." -- Barack Obama, Philadelphia, March 18 Guess it's time to disown Granny, if Obama's famous Philadelphia "race" speech is to be believed. Of course, the speech was not just believed. It was hailed, celebrated, canonized as the greatest pronouncement on race in America since Lincoln at Cooper Union. A New York Times columnist said it "should be required reading in classrooms across the country." College seniors and first-graders, suggested the excitable Chris Matthews. Apparently there's been a curriculum change. On Tuesday, the good senator begged...