Judith Miller never wrote about Valerie Plame, how did it become generally known that Miller had a conversation with a source that (presumably) disclosed the fact that Plame was CIA agent/wife of Joseph Wilson? I can’t find that link in this convoluted chain of events.
The first appearance of Judith Miller's name that I can find in a Nexis search is in the 8/3/04 New York Times:
A reporter for The New York Times, Judith Miller, was subpoenaed yesterday by a Washington grand jury investigating the disclosure of the identity of a C.I.A. undercover officer to the syndicated columnist Robert Novak and other journalists.
The subpoena to Ms. Miller was only the most recent of a series issued to journalists in a politically sensitive inquiry that has on several occasions led investigators to question White House officials.
A transcript search comes up with nothing before that, other than an incorrectly dated Talk of the Nation which must have been from 2005 and not 2004 as it's listed in Nexis.
Presumably it came out of the grand jury testimony...