"Regardless of whether or not a special prosecutor is selected, I believe that Ambassador Wilson and his wife -- like the DNC official once did -- should file a civil lawsuit, both to address the harm inflicted on them, and, equally important, to obtain the necessary tools (subpoena power and sworn testimony) to get to the bottom of this matter. This will not only enable them to make sure they don't merely become yesterday's news; it will give them some control over the situation.
(snip)
"While I have made no effort to examine all the potential causes of action that Wilson and Plame might file, several come to mind. For example, given the fact that this leak was reportedly an effort to harm them, a civil action for intentional infliction of emotional distress could be appropriate. (Because I am not aware of their residence -- the District of Columbia, Maryland or Virginia -- I will only state the law generally.)
(snip)
"Typically, there will be a statute to this effect: "One who by extreme and outrageous conduct intentionally or recklessly causes severe emotional distress to another is subject to liability for such emotional distress, and if bodily harm to the other results from it, for such bodily harm." Most often, these actions fail because the conduct is not sufficiently outrageous. But blowing the cover of a CIA operative by anyone with access to such classified information is outrageous by any standard.
(snip)
"...there is an entire body of law relating to civil actions based on criminal statutes and constitutional activities. Suffice it to say that there are a number of potential causes of action, and I have no doubt that a good civil litigator can fashion a powerful lawsuit for Ambassador and Mrs. Wilson."
http://www.yuricareport.com/Impeachment/WhytheWilsonsShouldSue.html