Your five-year-old daughter is watching a squirrel out the kitchen window and she asks you, "Is it true that some squirrels can fly? That they have wings?" (Problem: you'd like to show her a flying squirrel on your CD-ROM encyclopedia, but your son is playing computer games with his friends.) You are watching the world gymnastics championship on TV and the winner is an athelete from Belarus, and you're suddenly curious about that country. (Problem:...