In their recent book, Poles Apart, behavioural scientist Alex Chesterfield, public affairs specialist Laura Osborne and political advisor Ali Goldsworthy look at what factors drive society apart and what can help bring it back together. Economist and broadcaster Linda Yueh hosts a wide-ranging discussion with the authors exploring not only the cultural forces at play, but also the economic, political and social media triggers that tip people from healthy disagreement into dangerous hostility. 
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