Passengers wave and cheer from the Carnival Conquest cruise ship as the vessel arrives at the Alabama Cruise Terminal on the Mobile River on a rainy Sunday, July 7, 2013, in downtown Mo

 

              Passengers wave and cheer from the Carnival Conquest cruise ship as the vessel arrives at the Alabama Cruise Terminal on the Mobile River on a rainy Sunday, July 7, 2013, in downtown Mo
Passengers wave and cheer from the Carnival Conquest cruise ship as the vessel arrives at the Alabama Cruise Terminal on the Mobile River on a rainy Sunday, July 7, 2013, in downtown Mobile, Ala. The Conquest was diverted from New Orleans to Mobile after a tugboat sank in the Mississippi River Saturday, closing the river. (AP Photo/AL.com, Mike Brantley)