Global levels of peace deteriorated at historic rates over the past year, according to new data from the Institute for Economics & Peace. The independent think tank compared levels of peacefulness across 163 countries for its annual Global Peace Index, finding global conflicts have reached their highest rate since World War II. But how do you define peace, and how is it measured? The Institute for Economics and Peace Executive Director Americas Michael Collins joins us in the deep dive.

Hosts: Emma Gillespie and Sam Koslowski 
Audio producer: Annabelle Nicol

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