Traveling by air is one of the great luxuries of the modern age. It can also be one of the great trials, what with crowded airports, overbooked flights and questionable food. To make your next flying experience more enjoyable, we?re letting you in on air travel secrets every passenger should know. Whether it?s getting through security faster or knowing which part of plane it?s best to sit in during turbulence, we?ve got you covered.