Mark writes in with information about dangerous chemical exposure to veterans. North Ireland Fan asks why her government wants everyone to buy candles. Big Purp prompts a conversation about North Sentinel Island and the nature of language. Ground Control and Soup Sandwich share their first-hand experiences with airplane safety. 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.