As the Clean Water Act marks its 40th anniversary today, many environmentalists are wistfully recalling the law's bipartisan passage as a symbol of a long-lost period of unity around combating ecological problems. Approved by Congress on the heels of the National Environmental Policy Act of 1969 and the Clean Air Act amendments of 1970, the Clean Water Act received overwhelming support. But even then -- at the birth of the environmental movement -- politics that today surround the landmark law were beginning to emerge. Go to story #1