in a soon-to-be published book, president obama's former auto czar confirms that he asked carlos ghosn. the ceo of both renault and nissan to run gm. ghosn declined and actually resurrected an old suggestion that general motors become part of the renault/nissan alliance. what part of the story is more puzzling to you? that the u.s. needed a braz brazilian-born, lebanese-raised head. or that carlos turned president obama down? well if you know carlos ghosn, and i do, none of that is all that surprising. despite recent struggles with his companies, carlos ghosn remains the wunderkind of the