I don't think Lockhart did anything wrong. He was given a lead, and pursued it. What's wrong with that? Mapes obviously is unprofessional, unethical and partisn in her MO. If CBS does not bounce her, that will be another CBS scandal.
Lockhart is linking the Kerry campaign to this. Not too bright.
Everyone knows that Lockhart is a hack. It's the question of how he, or Mapes, felt it was professionally ethical (on her part) for him to follow up on a lead which she supplied to him and that could've affected the outcome of a federal election.
He must've known that the whole thing, at the very least, would appear to stink to the high heavens. But hey, you have to care about appearances in the first place, and I think that the Kerry camp is so desperate to come up with a "smoking gun", that they'll stoop to any measure at this point in time in a vain attempt to pull the old rabbit out of the hat.
Lockhart is evidence of collusion between CBS and the Kerry campaign. He's a goner.