There seems to be a lot of talk about this idea of political tribalism lately. Critiques that groups are increasingly insular not just around politics but about race or religion or any number of identity markers, and that this isolation makes it impossible to have meaningful conversations about the big issues facing our country. We’ve witnessed groups rallying around their side in ways that can be ugly, discounting the thoughts of the ‘Other’ on the mere status of being other, but is that true of all of political tribalism? Is it a dangerous group in-thinking or can it look like positive, meaningful group organizing? Chris Hayes is torn about the ambiguous use of political tribalism as a critique of certain types of politics, so he brought in Amy Chua to work them out. Amy Chua has been studying prejudice for 20 years and has a new book out called “Political Tribes: Group Instinct and the Fate of Nations”. In this episode, Chris Hayes and Amy Chua wrestle over these questions and discuss whether political tribalism is even inherently a bad thing to begin with. Visit NBCNews.com/WhyIsThisHappening for more.