What tipped things was when O'Reilly started going after GE CEO Jeff Immelt himself, attacking (legal) GE dealings in Iran and siccing viewers on Immelt to protest. Now there's a deal, brokered by PBS's Charlie Rose: O'Reilly and Olbermann stop attacking each other — and oh, yes, O'Reilly stops attacking GE.
I believe the word for this is "Danegeld."
The more I think about this, the angrier it makes me at all concerned — and though Greenwald paints this as "muzzling" Olbermann, the more I think about it the more my rage includes him. Just to start with, it makes his declaration two months ago that he was righteously "shunning" Bill O'Reilly and Fox for their roles in Dr. Tiller's death look extremely disingenuous in hindsight. Edward R. Murrow my ass...