This is the third in my series of sketchbook videos exploring the theme of Critical Thinking and Tribalism. In this video I discuss the relationship between tribal psychology and trust. What factors determine who we trust to provide reliable information about issues like climate change, gun control, and other issues of the day? More specifically, this episode is a deep dive into the psychology of risk perception. I look at two important forms of "motivated reasoning", AFFECT BIAS and CULTURAL COGNITION, discuss how these influence how we make judgments about the risks and benefits of various social policies.