But it is the mysteries that are murkier. Why was Karen Hughes this hard-headed but provincial Texan with no experience in foreign affairs and only a smattering of irrelevant Spanish handed the job of repairing America's image in the Muslim world? And, with just over a year to go in his presidency, why is this avid Bush loyalist leaving now?Nickel summary: she gave up. Full answer at the link.
This latter question is at least intriguing and perhaps ominous.