Support WBURHitching A Ride On The World's Biggest Cargo ShipPlay06:20Download AudioJackie NorthamMarch 13, 2014 ShareNPR's Jackie Northam on the Maersk McKinney Moller, a new container megaship that can carry about double what many other big cargo ships can carry. It's 20 stories high and four football fields long. (NPR)
