Concord, Massachusetts, is a small town with a glorious past. Here, in 1775, "the shot was fired that was heard around the world". Thus began the American Revolution. And it is here that about 50 years later Henry David Thoreau was born, the author of Walden, a reflection on simple living in natural surroundings. And this revolutionary spirit lives on in Jean Hill, an 84-year-old widow, staunchly fighting to have plastic bottles banned in Concord because of their disastrous effect on the environment.