Prosecutor Patrick Fitzgerald has made his case--or has he? Scooter Libby's defense will begin next week after three weeks of prosecution testimony. What have we learned from the trial? What's next? Is the Libby case about how the White House went to war or much ado about a crime that never happened?  The Pentagon's Inspector General questions the propriety of a Defense Department intelligence report. On Reporter's Notebook, the diamond trade tries to clean up its act.  Lawarence O'Donnell guest hosts.