Apparently, revealing the name of a secret agent who was specializing in tracking the black market for weapons of mass destruction is not a crime:

The decision by the prosecutor, Patrick J. Fitzgerald, announced in a letter to Mr. Rove’s lawyer, Robert D. Luskin, lifted a pall that had hung over Mr. Rove who testified on five occasions to a federal grand jury about his involvement in the disclosure of an intelligence officer’s identity.

In a statement, Mr. Luskin said, “On June 12, 2006, Special Counsel Patrick Fitzgerald formally advised us that he does not anticipate seeking charges against Karl Rove.”