Kerry campaign admits CBS works for them

Yahoo! News - Kerry Aide Talked to Retired Guard Officer

Apparently the Kerry campaign called Burkett regarding the Bush TANG story at the behest of CBS's Mary Mapes.

Joe Lockhart denied any connection between the presidential campaign and the papers. Lockhart, the second Kerry ally to confirm contact with retired Texas National Guard officer Bill Burkett, said he made the call at the suggestion of CBS producer Mary Mapes.

I would suspect that this is a pretty big breach of ethics. CBS refused to name their source to the public, but was happy to give that info to Joe Lockhart How can you claim to be unbiased when you are doing legwork for one of the campaigns?