"It is unclear how the discrepancy might affect the investigation. The former intelligence official said the WINPAC error could bolster Libby's defense, if he were charged with intentionally compromising the identity of a covert operative, since most Winpac employees are not undercover.
'It may actually be helpful to him by showing he was acting under a misimpression and it wasn't an intentional outing of a known undercover officer,' the official said."
OK, but if Libby thought she wasn't undercover, what's the motivation for "outing" her identity? How does that do anything for their cause? It doesn't make sense, but then, why should it?