When is a dose of healthy cynicism not so healthy after all?
Have we crossed a line between demanding democracy, and simply demonising those who represent us?
It is difficult to draw any rational conclusions from the murder of Jo Cox by a man whose motives virtually nobody understands. But what we do know is that MPs had been warning for years that something like this could happen.
Sarah Champion has had dozens of death threats in the four years she’s been the MP for Rotherham. I followed her for a week as she showed me just how vulnerable her job can be.
“We have been saying for a long time that an attack of this nature is inevitable and then it happens,” she told me.
“Why didn’t people listen to us? When you see all the stuff that is on Twitter and Facebook, it was inevitable that it was going to go from the virtual into the reality.
“It’s made me feel incredibly vulnerable.”