At the White House Correspondents' Dinner we saw the latest in a growing line of incidents of political violence directed at President Donald Trump and other members of his cabinet. Like previous attempts, this one failed. But each time nonetheless pushes the United States further and further into the sort of polarised mindset you would associate with civil war. Can the country halt the downward slide, or will the various players simply follow the immediate incentives in front of them and keep feeding the beast? Let's discuss.