How crews will work to clear the Baltimore bridge collapse wreckage
Wreckage from the Francis Scott Key Bridge collapse in Baltimore's Patapsco River is blocking one of the country's busiest ports. Navy crews are mobilizing barges and cranes to help clear the site, CBS News has learned. Captain Nick Sloane, a marine salvage and recovery expert who helped refloat the Costa Concordia cruise ship in Italy, joins CBS News with more insight.