Citing 18 U.S.C. §793(d), Andrew McCarthy at NRO thinks it's a "straightforward case" for prosecution of Mary O. McCarthy (no relation), the Democrat CIA leaker.
(Maybe he was reading the discussion on Flares over the weekend.)
UPDATE: James Taranto in his Best of the Web Today column, quotes Andrew McCarthy, and also adds:
"If Mrs. McCarthy leaked information that came her way as part of an inspector general's investigation, there also is no reason to assume that it--or the Pulitzer prize-winning story it helped produce--is true. Investigators often gather material that does not pan out or that turns out to be false or exaggerated."
And as to why there isn't yet a criminal prosecution, Taranto notes:
"The obvious answer is that she was fired based on an internal investigation, and the Justice Department, which would handle any prosecution, operates at its own pace."