Lancaster County, Pennsylvania is best known for its abundantly productive farmland and for the Amish and other "Plain People" who have made their home there since colonial times. Now both of these unique features are in danger of being permanently destroyed. "The Garden Spot of America" loses more than 20 acres of farmland every day to accelerated development. And the Amish, with a population that has doubled in the past 20 years and little land left to farm, tired of living in a fish-bowl for five million tourists a year, and frustrated by changing regulations, are moving out. They are...