"Soon after the fall of the Taliban, in 2001, Deborah Rodriguez went to Afghanistan as part of a humanitarian aid group. Surrounded by people whose skills--as doctors, nurses, and therapists--seemed eminently more practical than her own, Rodriguez, a hairdresser and mother from Michigan, despaired of being of any real use. Yet she found she had a gift for befriending Afghans, and once her profession became known she was eagerly sought out by Westerners...