Matthew Baldwin at Defective Yeti has a superb round-up of the Plame leak case:
http://www.defectiveyeti.com/archives/001356.html
And he's no fan of Bush, so you can take him at his word when he quotes Bush as saying: "If there's a leak out of my administration, I want to know who it is ... if the person has violated law, that person will be taken care of."
Not exactly a pledge to dismiss-- and spoken like a true politician, at that.