In ordinary times I'd agree with you. Today, there is way too much bias in the mainstream media to even make a pretence of objectivity. When we have CBS collaborating with the Kerry campaign and ABC making a policy decision to cover Bush's inconsistencies but not Kerry's, then in effect we have Moore's bias whether or not his movie is on tv.
It is my understanding that this "Holy Grail" of "Objective" journalism is a very recent phenomenon.
Throughout history, the press...the town criers etc., were very upfront about where their interest lay and what agenda they were trying to foster.
With any luck, we'll get back to this traditional "truth in advertising".....
Less "sneaky" that way.....(i.e. Walter "bet you didn't know I was a commie" Cronkite)