The "Real" Reason Why Don Imus Was Fired?

This would make a bit more sense to me considering the filth spouted by talk radio hosts on a daily basis and considering Imus has a history of making such insensitive remarks. Although I might add, take this article with a grain of salt. It is, afterall, an op-ed piece by Sorcha Faal. Anyone able to come up with the audio between Tim Russert and Imus backing up this assertion, please let me know.