This is like a bad 'who's on first' skit.
And who sent them to Burkett? Rather said they (CBS) went to Burkett, not Burkett to CBS.
If Burkett gave them a false source, how did CBS verify that source? Burkett now admits the first source was a lie, but has given them a second source, that can't be verified.
The source which was ''unimpeachable'' at that. You make an excellent point.
cBS didn't tell us anything we didn't already know & sure as heck didn't answer any questions. IMO, the fact that they didn't answer any of the obvious questions just makes the story bigger.