Two decades ago, Florida's Brevard County was a somnolent, 70-mile stretch of citrus groves along the Atlantic Coast. Thanks largely to the Cape Kennedy space complex, the county's population has grown to 250,000 today, and there are more engineers and technicians (35,000) than there were people in 1948. Nearly one-fourth of Brevard County's residents have a college education, six times the national figure; incomes in this affluent subsociety range from $8,000 to the moon. Most families own a boat and at least two cars.
Nonetheless, Brevard County, beneath its pleasant surface, is...