In part 4 of our 5 episodes devoted to updates on polarization research and related topics, Glen and April provide specific information that they chose as important in understanding and dealing with various polarization related issues. Glen begins by describing how various behaviors in society are enabled by powerful effects of social modeling, then he focuses on mis- & disinformation as a growing and malevolent influence on polarization. Glen offers suggestions for how we might address this increasing problem of erroneous information in our digitally influenced society. Suggestions include the importance of education that helps us all improve our media literacy, as well as the importance of building community. April encourages continued respect toward those who may be inadvertently spreading bad information and to continue to engage with others, even when some of their ideas are uncomfortable for us. Jerry points out how compassion and mindfulness practices can serve as a healing alternative to excessive reliance on either emotion or reason. April then discusses various types of civility and how they can be either more or less helpful in dealing with conflict. We conclude this round with a more in-depth discussion of the key points covered. Next up will be our 5th and final episode in this series on polarization research and thinking.