Planes: They're where we get drunk. Where we brawl. Where we disable the restroom smoke detectors and light cigarettes. Where we glare at crying children. Where we jam our knees into the backs of the fellow travelers who dare recline their seats. Where we allow our racial paranoia to imagine terrorist threats in the seats around us - a man taking a nap before takeoff, a college student speaking Arabic on the phone, an Ivy League economist scribbling some differential equations on a notepad.