Revenge is a dish best served cold. But in today’s episode, we’ll ask if it should be served at all. How healthy are grudges? What do we risk by harboring them? And why did two Frenchmen decide to settle their grudge over Paris, in air balloons, with blunderbusses?

Revenge is a dish best served cold. But in today’s episode, we’ll ask if it should be served at all. How healthy are grudges? What do we risk by harboring them? And why did two Frenchmen decide to settle their grudge over Paris, in air balloons, with blunderbusses?