Yep. Valerie drove her car from her home to Langley every day for six years. Pretty covert, huh? You can't be stationed at Langley and be covert. The rusky's still have agents watching that place and how hard is it to trace license plates? Covert from whom? Certainly no one in the spy community. Even the towel heads watch Langley. Good grief Charlie Brown.
It was a joke around the DC cocktail circuit that Valerie Plame worked at the CIA. Rove and this Scooter Libby guy simply spread around this chatter