http://nationaljournal.com/about/njweekly/stories/2005/1011nj1.htm#"Meanwhile, in recent days Fitzgerald has also expressed significant interest in whether Libby may have sought to discourage Miller-either directly or indirectly through her attorney-from testifying before the grand jury, or cooperating in other ways with the criminal probe, according to attorneys familiar with Miller's discussions with prosecutors.
During two interviews with FBI agents and in two subsequent grand jury appearances, Libby discussed at length a July 8, 2003, conversation about Plame that he and Miller had at the St. Regis Hotel in Washington, D.C., as well as a July 12 telephone conversation with Miller on the same subject four days later.
Although Miller would never herself write about Plame, it was two days after her last conversation with Libby that conservative columnist Robert Novak would reveal Plame as a CIA "operative" in his now-famous column of July 14, 2003.
The previously undisclosed June 23 meeting between Libby and Miller, their telephone conversations of July 8 and 12, and Novak's July 14 column occurred during an intensive period in which senior White House officials were scrambling to discredit Plame's husband, former Ambassador Joe Wilson, who was then publicly asserting that the Bush administration had relied on faulty intelligence to bolster its case for war with Iraq. "
This link is on his site. If you want to follow the facts, Joe's got the there.