Dams strain as water, death toll, keep rising in south Brazil

As the rain kept beating down, rescuers in boats and planes searched for dozens of people reported missing among the ruins of collapsed homes, bridges and roads. Rising water levels in the state of Rio Grande do Sul was putting strain on dams and threatening the metropolis of Porto Alegre with "unprecedented" flooding, authorities warned. "Forget everything you've seen, it's going to be much worse in the metropolitan region," governor Eduardo Leite said Friday as streets of the state capital, with a population of some 1.5 million...