Where are the red lines exactly?

Jorno Twitter is very upset because President Trump tweeted a bunch of stuff accusing Joe Scarborough of Morning Joe of killing a staffer.

Let’s even assume it isn’t true. 

The media has launched a full bore assault demanding that Twitter censor President Trump. 

Meanwhile MSNBC’s account tweets stuff like this from Scarborough, “Donald Trump is either an agent of Russia or he’s a useful idiot. He’s somewhere in between there. We don’t know what it is. We will one day.”

So where exactly is the line that requires censorship?

It’s okay for Scarborough and MSNBC to accuse Trump of being a Russian spy, but not okay to accuse an MSNBC host of being a murderer.

What exactly is the distinction except that the media can tell any lie it pleases, but no one is allowed to smear it?