Cover Story Why heroin is spreading in America's suburbs (+video)

The drug has followed prescription painkillers into new neighborhoods, forcing police and parents to confront an unexpected problem.

AP photos

Ana was a good student in middle school. She got above-average grades, seemed poised and self-possessed, and, like many of her friends in her charming coastal town north of Boston, was on a probable path to college. Then, during her freshman year in high school, she decided to experiment with drugs and alcohol.