<p>Peter reads a memory of the time Nazi slave-driver and rocket engineer Wernher von Braun came over for tea, set to a song Ken Burns once used to make people feel cozy amid horror in history. And we chat: about America's decision to forget von Braun's war crimes; the modern legacy of "just following orders"; and Peter's fascination with the monsters who destroyed his parents' world. This podcast is a light unto the nations.&nbsp;</p>