Hopes dim in search for survivors after Brazil dam collapse

Search efforts were paralyzed for much of the day on fearsanother dam could give way in the Vale SA iron ore mining complex in the state of Minas Gerais.The collapsed dam at Vale's Corrego do Feijao mine buried mining facilities and nearby homes in the town of Brumadinho and killed at least three dozen people.Firefighters spent Sunday morning evacuating thousands from their homes before resuming search-and-rescue efforts in the afternoon once civil defense authorities ruled out the risk of anoth