If CNN participated in a blatant propaganda - i would want to hold them accountable. I don't believe they did during Iraq war, primarily because CNN is not government owned media and they don't know what is true or not. You can blame them for not verifying stories (and there should be responsibility for that as well), but RT absolutely knows what things they report are propaganda lies and what aren't.
>primarily because CNN is not government owned media
Depends on how much stock you put in Operation Mockingbird.[1] Many journalists in mainstream media absolutely carry water for the government. And it's not just CNN either, it's Fox News, NY Times, Washington Post etc.
most people here are not supportive of banning cnn etc