From this article ...... Novak: Feds know who outed CIA agent
http://www.suntimes.com/output/news/cst-nws-novak20.html
Novak also claimed that investigators know who leaked the information, although he did not say how they know.
"The question is, does Mr. Fitzgerald know who the source was?" Novak asked. "Of course. He's known for years who the first source is. If he knows the source, why didn't he indict him? Because no crime was committed."
Novak said he doesn't believe his source violated laws forbidding the disclosure of a CIA agent's identity.
A spokesman for Fitzgerald declined to comment on Novak's remarks.
At an appearance in December, Novak said President Bush knows his source, too. On Wednesday, he called those remarks "indiscreet."
Novak said he would reveal more "in time, when this investigation, if it ever ends, ends."