What I don't understand is that any first year law student, or even hot dog salesman, knew in the first 5 minutes that no law had been broken. Even if Karl had held a press conference and said that Wilson was sent to Niger at the recommendation of his wife, a CIA employee.
So if it is very obvious at the outset that no law was broken, how do you drag out an investigation for two years, unless you're just trying to milk the government for two years employment.
The fundamental mistake was ever accepting the left's bogus assertion that Plame was a "covert agent" whose exposure would put her in danger and violate the law. None of that was true, hence no crime in naming her, hence no special prosecutor to go fishing for two years.
You go after people who may have lied before a grand jury to cover up a crime that never happened.