A captain’s log is a simple thing: the date, the time, maybe the weather — and the current status of a long journey. You wouldn’t know from the cryptic notations what weird worlds lurk beneath. On this week’s show, stories behind those cryptic notations — including a concentration camp in China that housed groups of Girl Scouts. Also, Aziz Ansari explains the significance of a Thanksgiving text message, and Etgar Keret destroys a marriage piece by piece.