That all depends upon what the meaning of the word 'if' is....
What's scary is that 10 or 15 years ago, CBS would've gotten away with it. Before the advent of the internet, talk radio and 24 hour news channels, the Big 3 (ABC, NBC, CBS) controlled, for better or worse, the content of news that was broadcast to the public.
On the newspaper side, the New York Times, Boston Globe and L.A. Times had the same sort of oligarchistic power. After all, who would've been there to challenge their suppositions?