“Chickens coming home to roost,” responded Malcolm X to the assassination of John F Kennedy. He meant that in a violent society, violence cannot be contained. In a country premised on militarism and racist brutality, no one is safe. X’s remark was certainly callous, but he also had a point. It applies with even greater force to Saturday’s assassination attempt on Donald Trump. To be clear, the attempt on Trump’s life was reprehensible. An attack on him is an attack on democracy itself. It is a core democratic principle that no matter how much you disagree with your opponents you...