On a flight, a woman insulted me, calling me "trailer trash." I burst into tears from the public humiliation. But the flight attendant reacted in an unexpected way, which made the woman regret her cru/elty. It was supposed to be a quiet Thursday afternoon flight from Houston to New York. Lily, a seventeen-year-old girl with weary, haunted eyes, was on her way to a residential program for at-risk youth. She carried no luggage, only a tattered backpack and a faded photograph of her mother. Ten min