Matthais calls to ask about why some streetlights are turning purple. Kyle writes in with a question about a possible fast food conspiracy to short people on condiments. Curious in Seattle prompts a disturbing exploration of the death of federal prosecutor Thomas Wales, who appears to have been murdered by a professional assassin. Ben, Matt and Noel decide to dive into the case in a future episode. All this and more in this week's listener mail segment. They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/ See omnystudio.com/listener for privacy information.