From
Wikipedia's Valerie Plame entry:
Plame is known to have served in a classified position as a CIA officer. At his October 28, 2005, press conference, Special Counsel Fitzgerald noted:
Valerie Wilson was a CIA officer. In July 2003, the fact that Valerie Wilson was a CIA officer was classified. Not only was it classified, but it was not widely known outside the intelligence community. Valerie Wilson's friends, neighbors, college classmates had no idea she had another life. The fact that she was a CIA officer was not well-known, for her protection or for the benefit of all us. It's important that a CIA officer's identity be protected, that it be protected not just for the officer, but for the nation's security. Valerie Wilson's cover was blown in July 2003. The first sign of that cover being blown was when Mr. Novak published a column on July 14th, 2003.
Some claim to be uncertain as to whether Plame was a covert agent. According to USA Today, Plame worked in the Langley, Virginia, CIA headquarters since 1997, when she returned from her last assignment, and married Joe Wilson and had her twins. <5> Conservative columnist Max Boot argues that it is very unlikely that a CIA employee commuting to the headquarters building each day would be a covert agent. Columnist Robert Novak wrote that an Agency source said Plame "has been an analyst, not in covert operations." <6> It has been speculated that Plame may have worked in the CIA administration in the office of former CIA Deputy Director of Operations (DDO) James Pavitt.
Former CIA officer Larry C. Johnson attempted to clear up the confusion surrounding Plame's status in a column responding to Max Boot: "The law actually requires that a covered person 'served' overseas in the last five years. Served does not mean lived. In the case of Valerie Wilson, energy consultant for Brewster-Jennings, she traveled overseas in 2003, 2002, and 2001, as part of her cover job. She met with folks who worked in the nuclear industry, cultivated sources, and managed spies. She was a national security asset until exposed by Karl Rove and Scooter Libby."<7>
It was confirmed that she was a covert operative early in the investigation by acting intelligence officials, setting the matter to rest.<8>Of course if you really want to mess with freeper types who cling to this myth, hit them with logic: if Plame wasn't covert, then why is there an active and ongoing investigation to nail those who leaked her identity to the press? They might claim that this is nothing but a politically motivated investigation, but that's an indefensible position when you look at who Fitzgerald's boss is, and which party runs the other two branches of government.