I believe there is "evidence" in Judith Miller's October 16 NYTimes article that indicates Scooter Libby saw the INR memo (the one that mentions Joe Wilson's wife at CIA) prior to his June 23 interview with Judith Miller.
First Libby meeting
Miller wrote ...
"Soon afterward Mr. Libby raised the subject of Mr. Wilson's wife for the first time. I wrote in my notes, inside parentheses, 'Wife works in bureau?' I told Mr. Fitzgerald that I believed this was the first time I had been told that Mr. Wilson's wife might work for the C.I.A. The prosecutor asked me whether the word 'bureau' might not mean the Federal Bureau of Investigation. Yes, I told him, normally. But Mr. Libby had been discussing the C.I.A., and therefore my impression was that he had been speaking about a particular bureau within the agency that dealt with the spread of nuclear, biological and chemical weapons. As to the question mark, I said I wasn't sure what it meant. Maybe it meant I found the statement interesting. Maybe Mr. Libby was not certain whether Mr. Wilson's wife actually worked there."
Libby was obviously planting information about Plame's C.I.A. work that he got from the INR memo, laying the groundwork for the nepotism charge as a way to undermine Wilson's credibility. He must have explained (perhaps Miller asked) that he was basing his information about the alleged Joe Wilson-Joe Wilson's wife connection on information from "the bureau" (meaning the State Department's Bureau of Intelligence and Research), but Miller must have assumed a bureau within C.I.A. and wrote to herself "Wife works in bureau?" with the question mark that shows she wasn't entirely clear which bureau. It seems that clearing up which bureau was one purpose of the second meeting Miller had with Libby..
Second Libby meeting
Miller wrote ...
"At that breakfast meeting, our conversation also turned to Mr. Wilson's wife. My notes contain a phrase inside parentheses: 'Wife works at Winpac.' Mr. Fitzgerald asked what that meant. Winpac stood for Weapons Intelligence, Non-Proliferation, and Arms Control, the name of a unit within the C.I.A. that, among other things, analyzes the spread of unconventional weapons."
Miller must have asked for clarification about the bureau for which Wilson worked, tom clear up the confusion from the first interview indicated by her question mark behind the word bureau. Note the word "non-proliferation" in the meaning of Winpac, because that is an indication that Libby had the INR memo and was referring to it, perhaps reading from it to make Wilson's wife's workplace clear. We don't know exactly what the INR memo says, since it has never been declassified, but on July 22, Bloomberg reported this about the contents of that State Department INR Memo ...
"The memo, prepared July 7, 2003, for Secretary of State Colin Powell, is a focus of Fitzgerald's interest, according to individuals who have testified before the grand jury and attorneys familiar with the case. The three-page document said that Wilson had been recommended for a CIA-sponsored trip to Africa by his wife, who worked on the CIA's counter-proliferations desk."
Notice that last phrase about proliferation. That's very close to the meaning of Winpac (Weapons, Intelligence, Non-Proliferation, and Arms Control). It's quite possible that the INR memo itself says Winpac.
It was at this second meeting that Miller recalls Libby pulling a paper out of his pocket, which was probably the INR memo or parts of it.
Miller wrote ...
"Mr. Fitzgerald asked me to examine a series of documents. Though I could not identify them with certainty, I said that some seemed familiar, and that they might be excerpts from the National Intelligence Estimate of Iraq's weapons. Mr. Fitzgerald asked whether Mr. Libby had shown any of the documents to me. I said no, I didn't think so. I thought I remembered him at one point reading from a piece of paper he pulled from his pocket."
Admittedly, this is all speculation based on circumstantial evidence from Miller's article, and it's thin as evidence for speculation, but then again the Miller article is thin on specifics. However, I believe it indicates that Scooter Libby had to have known about the contents of the INR memo, which was first prepared by INR on June 10, prior to his meeting with Miller on June 23. And, it seems probable that he had a physical copy of the INR memo (possibly a copy of the July 7 memo copy prepared for Colin Powell and sent to the White House) that he pulled out of his pocket and used to give information to Miller during their breakfast meeting at the St. Regis Hotel on July 8. It all seems obvious to me, and, if true, this would indicate a conspiracy was underway, using classified materials, at the highest levels of the Bush White House.