Page 12 - Ocean Shield News Today : Breaking News, Live Updates & Top Stories | Vimarsana

To the environment and the least disturbance to the economy. >> the italians and americans put together a salvage plan, released footage and animation of the complicated operation which included attaching heavy cables from poles to keep the ship from sinking even deeper. the work was extremely dangerous. >> anybody doing any work is going to be in a weird position. so you're going to have to have safety harnesses and equipment that can deal with that kind of environment. because nothing is straight. >> it was not until this past september 20 months after the accident that the costa concordia w...

Environment. because nothing is straight. >> it was not until this past september 20 months after the accident that the costa concordia was brought to a vertical position. but months of the salvage operation are still left. ultimately the ship will be towed to a nearby port and torn down. hundreds of billions of dollars have been spent. in just over a decade earlier in february 2001, a u.s. sub, the pacific, off the coast of oahu initiates an incident. nine people were killed including four high school students. because of the depth and weight of the wreckage there were doubts that it could ev...

David, i want to start with you. when it comes to trying to recover the bodies of the victims here the divers not only have the challenge of navigating a ship upside down and under water but the visibility is so poor we keep hearing they almost have to operate by feel? >> yes, it is a very difficult situation to work in, anderson. particularly that they have limited time at depth that they can work. so they have got to transit from the surface of the water down and enter the ship. figure out where they are, divers can get very disoriented when they're working on a submerged ship under water. i...

Take, they don't know. >> how long are you hearing about the plans for the long-term search? because we really do seem to be at that phase. >> reporter: yeah, with this focused area they really did narrow down what was a really broad search area. and now, one that would appear to be almost complete. they might redo some of those areas, just go near the first ping, which is just north of this area. they could look at that arc where the flight path was suspected to be, 300 miles by 30 miles. there are talks going on, malaysia, the u.s., the australians and others. and they say next week they wil...

More now on our breaking news out of south korea, the death toll in the ferry disaster rises to 181, 121 others still missing. and until the bodies of all the victims are recovered the ship does remain a grave site. but after the victims are returned to their families the ship will become a salvage operation and the investigators will try to answer the key question what caused that ferry to sink. now salvaging a ship that large will take time. it will be dangerous and expensive. but it has been done before. "ac360's" gary tuchman reports. >> reporter: this is not the first time south korea has...