All over the world, there are ruins of once-thriving cultures. The author of the Pulitzer Prize-winning “Guns, Germs, and Steel” explains how environmental factors have often led to civilizations’ collapse, and talks about lessons for the modern world.

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  • Jared Diamond professor of geography at UCLA

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The Role Of Music In Presidential Campaigns

Thursday, Sep 03 2015Presidential candidates today frequently use popular pieces of music as campaign "theme songs" often without approval from the musicians themselves. But using music on the campaign trail is not a modern phenomenon: it goes back to our earliest presidential elections.