If you've ever stared at the back of a plane while boarding or taxiing and noticed a small hole near the tail, you're not alone. It's easy to miss, but once you see it, you'll start spotting it on ...

(CNN) — Look at the photos of the two fatal air crashes of the last two weeks, and amid the horror and the anguish, one thought might come to mind for frequent flyers. The old frequent-flyer adage is ...