Michigan's Rouge River has been returned to health thanks to the Clean Water Act, $1 billion and measures to filter runoff from surrounding factories, neighborhoods and golf courses. The U.S. Environmental Protection Agengy calls the collaborative efforts that contributed to the river's clean-up a "Blueprint for success." Much needs to be done before swimming there will be attractive to most people, but many of the million nearby residents have returned to the banks to launch canoes, fish or walk. A valuable lesson was learned. It's cheaper to keep a river clean than to rehabilitate it later… AP details the efforts