American Rivers, a river conservation and clean water advocacy nonprofit, released its annual list of America's Most Endangered Rivers, which spotlights 10 waterways in the United States that have been threatened by industrial pressures, environmental degradation and other opposing factors. Rivers in the United States are a critical natural resource — providing a vital habitat for wildlife and fish, essential economic drivers, premiere outdoor recreation destinations and often primary sources of safe drinking water for millions of people. MORE: National...