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As I said, all CIA employment is classified, and once someone has been covert, their employment status is ALWAYS classified
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Which leads to two question....
1) If Joe Wilson were so concerned with security, why would he broadcast to the whole world, a trip which his wife was involved in and which should also be classified ( heck, it should be, if not, then his being a "spy" for the USA in Niger would not have been known ).
2) Why isn't Bob Novak, who PUBLISHED the fact of Plame's working as a CIA operative IN A NATIONAL PAPER, in jail ?
Obviously, what Bob Novak did should be a crime if what you said is true. Yet, here he is, free as a bird. Something does not compute.
The trip wasn't classified, so he's free to talk about it. Joe Wilson is publicly known as a member of the State Department, so him doing this job for the US isn't surprising. Because Valerie is known as a Brewster Energy employee, he can talk about whatever he does. That's the thing people keep getting confused about - no one knows she's with the CIA. Her family is on record as saying even they had no idea, and I can tell you from abundant personal experience that the families of NOCs not knowing is the rule, not the exception. Even when you're no longer classified as covert, you never reveal what you used to do.
As for Novak, I suspect he's not in jail because Fitzgerald is far more interested in who gave him the info - that's the person who revealed classified info. I'm not a lawyer so I have no way of knowing if what he did was even illegal.
I'm not terribly worried about anyone having violated that 1982 law Toensing is always going on about. I haven't seen anything to suggest anyone broke the law. But somebody, somewhere at somepoint revealed classified info to Novak and that's the question on the table - who did that?