[Brooke Baldwin, Cnn Anchor:] It is the bottom of the hour. You're watching CNN. I'm Brooke Baldwin. And I want to take you back now to just the painstaking search off of South Korea and the frigid Yellow Sea waters for bodies now in this deadly ferry disaster. The latest number we now have today, 159. That's the number of bodies that have now been pulled from this ferry. Still 143 people are missing. Training has become a major point of discussion in this ferry investigation. Were crew members properly prepared to handle an emergency such as this? We are now kind of getting an example of how to be on board a ship in this sort of crisis and what should happen when a ferry takes on water. CNN's Rosa Flores is here to walk us through some of this training in emergency situations like the one off of South Korea. So, Rosa, take it away.
[Rosa Flores, Cnn Correspondent:] We're going to take you through this. We're at Resolve Maritime Academy at Ft. Lauderdale, Florida And this is what a bridge looks like. David Boldt will give us a sense as to what we're looking at.
[Dave Boldt, Resolve Maritime Academy:] A full mission bridge simulator. You have radars, control systems, control engines and everything you would see o the bridge of a ship.
[Flores:] Everything that you would need. Take a look at the horizon. Now we are exiting the port of Miami. You will be able to see, we will be out at sea and you can see an open body of water. And you can complicate things a little bit by adding, for example, large waves, and adding rain and thunderstorms, and then we also did something else. We got a rare view at another complication. So what if water starts rushing into the hull of a ship? Take a look. On a ship this is the universal sign of trouble. Inside this model ship hull, instructors from Resolve Maritime Academy train crews how to prevent a deadly disaster at sea, like the singeing of the passenger ferry in South Korea. Investigators say the nearly 7,000 ton ship sank in about two hours. 476 people were inside when a boy on board made the first call for help at 8:52 a.m. local time. The ship's crew made a distress call about three minutes later, at 8:55. The crew's response is critical to preventing disaster. In this scenario, water is rushing in from an unknown source. [on camera]: Water is starting to rise. What do you do?
[Pete Donlon, Trainer, Resolve Maritime Academy:] Get away from the damage. Make sure the crew knows about it.
[Flores:] They use anything they can to plug the holes. [on camera]: How much time do you really have to get out or to assess the situation when water starts really gushing in?
[Donlon:] It all depends on the scenario. The deeper the hole and water, the more water pressure is going to be pushing in.
[Flores:] If I'm a passenger that's on a ship and I'm not familiar with the ship, what do I do to get to safety?
[Donlon:] Best thing to get to safety is follow the walls, get outside. I always recommend getting to the main deck.
[Flores:] Now we know that the South Korean ship listed at about 60 degrees. Dave is going to do that. Let's started listing it slowly to give folks perspective. This is the perspective from the bridge. What would be going through your mind?
[Boldt:] If you list like this and you're not coming back you know something is wrong.
[Flores:] There is an issue you would be communicating with them. I want to give you another perspective from the passengers. Take a look at the second camera. You will be able to see what the 60 degree angle looks like. You can see the water a lot closer to the lifeboats and those balconies. I want to come back to Dave. One of the things that stands out to me is for a lot of professions there is continuing education. That's not the case for passengers.
[Boldt:] No. There are some safety courses you have to renew. In general, once you get your license, you're good. Some of the clients that we train with, some of the big cruise lines are starting to do that and taking it upon themselves to do recurring training. That's why this facility was built, for them to take recurrent training. So they have taken that lesson from aviation and started doing it.
[Flores:] And implementing it?
[Boldt:] Yeah.
[Flores:] So, Brooke, that's one of the big take-aways from here. Facilities like this were built so that these drills can be practiced and so that captains can be able to make the split-second decisions. And the cruise liners that are coming here are being proactive and having their crew members train to make sure that they can avert disaster.
[Baldwin:] That's good. They should be. Just talking to a woman who was on "Costa Concordia." She said so much needs to change in the training, and sadly it doesn't seem to be there. Rose Flores and Dave, thank you so much as well for that simulation. Rescue divers in dangerous situations like that can sometimes use remarkable technologies to help and find some survivors. CNN's Randi Kaye shows us what one high-tech tool can do to help.
[Randi Kaye, Cnn Correspondent:] If you're wondering how robots might help search for passengers onboard the South Korean ferry, watch this. You're looking at a mini ROV, a remotely operated vehicle. When it comes to ship wrecks, this machine is a workhorse. It can stay under water for days at a time, maneuvering its way through openings humans don't fit or is too dangerous for them to go.
[Rhonda Moniz, Rov Pilot And Diving Expert:] So to go forward, you're going to use it. It's very, very intuitive. To back it up, you will back it up this way.
[Kaye:] Like a video game.
[Moniz:] It is. Exactly.
[Kaye:] Rhonda Moniz is an ROV pilot and diving expert. She works for Seabotics, which builds these ROVs. This robot is directed by an ROV pilot at the surface. It moves at two knots per hour. Even in murky water or at knight, these robots can see. They have lights and special low-visibility cameras. They have sonar, too, which can pick up images up to 400 feet away.
[Baldwin:] Randi Kaye, thank you so much. I want to take you next to Nepal, because when it comes to climbing or even summiting Everest, if you are one of the few that can do it, Sherpas may have the most important and crucial job o that mountain, but also the dangers are miles high. You wouldn't know though if you look at their paychecks. And a lot of clients and Sherpas find that deeply troubling.