It turns out that a lot of his e-mails -- from around the time of the Plame leak -- were deleted. The act runs counter to White House policy.
Left-leaning "Media Matters for America" monitored news broadcasts and articles this week:
"...only CNN, the Associated Press, and The New York Sun have devoted any substantial coverage to Fitzgerald's revelation."
Media Matters has this clip from CNN's Situation Room on the subject: