So, once it was worthwhile to publish inside information when you're a young upstart, but when you have inside info now that may expose the guilty culprit in a crminal investigation of the White House, it's just better to keep your mouth shut--at least until going public may help the case of someone who has already been indicted.
Woodward kept quiet for fear of being having to testify. Now, why would you if you know there is an ongoing investigation. Of course, the other part of this is that he didn't tell his boss because he claims that he was gathering information for a book, and not for the Washington Post. I think again we must look into oversight of journalists by their editors.
But let's be clear that this in no way should exonerate Libby. Libby clearly lied and should pay the price for that. What it does show is that others were involved and other indictments are likely.
Again, it seems clear that journalists are more concerned with keeping sources confidential than doing what is right. It should make us wonder if people like Woodward or Judy Miller are more loyal to their role as journalist or to the Bush Administration.