Violence is all over the news. But some say we're living in the most peaceful time in history. Journey through time and the human mind to investigate whether-and how-violence has declined. And witness how people are working to stop violence today.
Episode Duration: 1 hour 56 minutes and 46 seconds
Episode Number: 4622
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PBS' premier science series helps viewers of all ages explore the science behind the headlines.
Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.
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