How low are Dan Rather's "journalistic standards"?

Josh Marshall provides a possible clue:

"According to Steve Clemons, at a speech over the weekend at the University of Central Arkansas, Michael Moore said that he had been offered the 'Killian memos' during his work on Fahrenheit 9/11, but passed on them, considering them unreliable."

Does it get any lower than that?

Rather's solace is that he isn't plumbing those depths alone.