Well now I see why we are having this little disagreement. Of course a covert agent would be protected well above TS and might be known to only a few selected people.
But Plame clearly wasn't in that category, at least for the 5+ years prior to her supposed "outing". At least that is what I'm assuming since it fits with what we know about the case. I am assuming that the people who have stated that they knew she worked at CIA well before the Novak article was printed are telling the truth. For me that is enough to verify that she was no longer a covert agent. If, as it appears now, she was a desk jockey at Langley working in the WMD area then the fact that she was employeed by the CIA would be too easily discovered to justify a classification at the levels that you have indicated.
I don't budge easily. I'm sticking to my guns.
In additon to her personal status, there is also the outing of the front company she worked for. This could impact other agents who worked for this company.
But after that argument is made, the lefties always ask why would the CIA want this matter investigated if she wasn't covert. I wish the CIA would just say if she was covert or not.