We have become politically more divided than we have been in a long time. Why is this? What’s happening to us? Why do we argue so much with each other about racism, constitutional rights, border security, about freedom? What is it that we get so upset about? Why are we so tribal? And what conditions make us so divided now – what is it in the current era of human history that makes us so upset with each other? Every week, we invite a thinker who will shine a light on the question: why are we so angry?