Well, if you're into a fair comment issue, if you characterize it as a comment as opposed to a declaration of facts, one of the considerations is whether in fact the comment was honestly and fairly made. So it may well be a germane consideration that the facts weren't fully known, or could not have been fully known, by the person making the statement until some later point after the allegedly defamatory statement was made.
On March 30th, 2010. See this statement in context.