A few days ago I received my first Christmas present of the year! It came from an unlikely source, and it is certainly appreciated. It’s a book called Prisoner’s Dilemma by William Poundstone. The book is about game theory and its relevance to nuclear proliferation and the Cold War and it is excellent. I’ve read it several times (and am reading it again now) but didn’t have my own copy. I’ve bought the book at least five times, but I keep loaning it to people and have gone a year or so now without my own copy. My public thanks, Dan! I love books. Read ’em constantly. Re-read ’em all the time. A wonderful gift …