Iron Man hips the guys to a bizarre story about potassium. Sgt. Will presents a fascinating theory about nuclear weapons and "aliens." The Cold War Hammer prompts a discussion of possible Russian ASAT weapons. Big Shucks sends news of new drugs that could help cats and dogs live much longer. Ben ponders what might amaze time travelers. 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.