I do.
A CIA covert operative's identity was revealed, a violation of the IIPA. Plame was a covert CIA operative, according to the testimony of the CIA Director to the US House Committee on Gov. Reform 2007.
Also the investigation in which Libby perjured himself was instigated at the CIA’s request.
The leak damaged her career, could have risked her associate’s lives and possibly national security (she worked in a dept. trying to stop WMD being used against the US, ironic huh?).
The only motivation I can see was it was done in retaliation to her husband publishing information/opinion that contradicted the Bush administrations case for war in Iraq.
Or done by accident, but I do not accept incompetence as an excuse, as Libby claims, at this level.