cruise ships ever built. it is the costa concordia, of course, the 952-foot ship that ran aground in january of last year killing 32 passengers. erin has details on the salvage plan. >> it is 19 months since the luxury cruise liner ran aground off the west coast of italy killing 32 people on board. now news that the crippled ship will be lifted from its side in september. an american and italian company are working around the clock to prepare the infamous wreckage for the junior friday the tuscan island and avoid an environmental disaster. engineers say it is a naval salvage operation like no other in history. >> slow enough to fire with less people and welders joining us and still have 55 coded welders on the project 24 hours a day.