From CBSNews.com:
Burkett, a retired National Guard lieutenant colonel, also admits that he deliberately misled the CBS News producer working on the report, giving her a false account of the documents' origins to protect a promise of confidentiality to the actual source.
Burkett originally said he obtained the documents from another former Guardsman. Now he says he got them from a different source whose connection to the documents and identity CBS News has been unable to verify to this point. Burkett's interview will be featured in a full report on tonight's CBS Evening News with Dan Rather (6:30-7:00 p.m., ET/PT).
