Most of the episodes in this series have been about my luck and privilege as a white and well-off American; they reflect my growing realization that the luck and privilege I’ve enjoyed in the nearly eight decades of my lifetime are in good part a product of America’s vast wealth and power throughout those decades of the postwar era. In this and several episodes to follow, I turn to the third theme of the series: my and my country’s responsibility to the rest of the world, and especially to the world’s poor.