Oh, please.
The Left made a frigging career of outing CIA agents and publishing secrets back in the Age of Reagan and earlier. Philip Agee and Daniel Ellsberg still draw admiration on university campuses and elsewhere.
You can't tell me that Democrats would be at all interested in this if, say, Ted Kennedy had blown Plame's so-called cover.
For a good time, google "leaked memo" over the past month or so. The Left obviously has little real concern for classified information when it serves their political goals.