For this discussion of “Poop & Pipes” (as guest Scott Huler put it) we were joined by Rose George, whose most recent book is “The Big Necessity : The Unmentionable World of Human Waste and Why it Matters”, and Scott Huler, whose book is “On the Grid : A Plot of Land, an Average Neighborhood, and the Systems that Make our World Work”. I’ll avoid all puns involving the word “sh*t” and merely say: Who knew sewers & sanitation could be so interesting!