Keith Olbermann has banned Richard Wolffe from appearing on Countdown, for the time being, due to a potential conflict of interest. From Olbermann’s Kos post on the news:

As to Richard Wolffe I can offer far less insight. I honor Mr. Greenwald’s insight into the coverage of GE/NewsCorp talks, and his reporting on Richard’s other jobs. I must confess I was caught flat-footed. I do not know what the truth is; my executive producer and I have spent the last two months dealing with other things (see above) but what appears to be the truth here is certainly not what Richard told us about his non-news job.
I am confident his commentary to this point has not been compromised — he has been an insightful analyst and a great friend to this show — but until we can clarify what else he is doing, he will not be appearing with us. I apologize for not being able to prevent this unhappy set of circumstances from developing.

This must be more than a little shocking to Wolffe, who guest hosted Countdown in Olbermann’s absence as recently as Friday.