Miami Bridge Collapses; at Least 4 Are Dead

Miami Bridge Collapses; at Least 4 Are Dead  New York Times Cables on Florida bridge were being 'tightened when it collapsed,' Rubio says  CNN Probe to start after FIU pedestrian bridge collapse kills at least 4  Sun Sentinel Did construction technique lead to FIU pedestrian bridge collapse?  Miami Herald Miami pedestrian bridge collapses, killing at least four, officials say  NBCNews.comFull coverage