Cass Sunstein on the constitution in the 21st century harvardmagazine.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from harvardmagazine.com Daily Mail and Mail on Sunday newspapers.
Whether you think puzzles are a colossal waste of time or an excellent way to give your brain a workout, author A.J. Jacobs says there can be no doubt about the unifying nature of cracking a head-scratcher.