Read the transcripts, Plame was not covert, hadn't been covert in years, and even fumbled trying to claim she was covert, in front of a friendly Congress, just recently. Plame was outed by a spy during the CLINTON administration, and was called home because the KGB and any number of other agencies knew exactly who she was. Richard Armitage is the one who brought Plame's name up to begin with, and the "special prosecutor" and the Democrats knew for YEARS who gave out Plame's name, and he has NEVER been charged with ANYTHING, mostly because he's from the STATE department and he's a member of the anti Bush group himself.
By the way, it was either one of the Walkers, or Ames, who actually compromised Plame and hundreds of others, some of whom were killed.
The current witch hunt is just that, obviously. The Clintons fired over 90 U.S. attorneys, and no one said a word. Gonzales fired 8.
Oversight? You call ANY of it oversight? Get real. The legislative branch can't handle oversight of their own members, neither freaking party. How can you expect them to handle oversight of another branch? And who has effective oversight over them?
