Exhibit A in the Libby trial, proof that Plame was covert:

http://msnbcmedia.msn.com/i/msnbc/sections/news/070529_Unclassified_Plame_employement.pdf

"On 1 January 2002, Valerie Wilson was working for the Central Intelligence Agency (CIA) as an operations officer in the Directorate of Operations (DO). She was assigned to the Counterproliferation Division (CPD) at CIA Headquarters, where she served as the chief of a CPD component which responsibility for weapons proliferation issues related to Iraq. While assigned to CPD, Ms. Wilson engaged in temporary duty (TDY) travel overseas on official business. She traveled at least seven times to more than ten countries. When traveling overseas, Ms. Wilson always traveled under a cover identity– sometimes in true name and sometimes in alias–but always using cover–whether official or non-official cover (NOC)–with no ostensible relationship to the CIA. At the time of the initial unauthorized disclosure in the media of Ms. Wilson’s employment relationship which the CIA on 14 July 2003, Ms. Wilson was a covert CIA employee for whom the CIA was taking affirmative measures to conceal her intelligence relationship to the United States."