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Rescue teams on the scene had hoped to use underwater vehicles to help locate victims of the Sewol disaster, but strong tidal currents and limited visibility have made that very difficult. Our Park Ji-won tells us more about some of the devices divers could use to assist their efforts. This is remotely-operated underwater vehicle called the Hemire,... developed by the Korea Institute of Ocean Science and Technology. This unmanned vehicle can dive up to six-thousand meters to the bottom in the sea,... and move at a speed of about two-point-eight kilometers per hour. This multi-functional deep submergence vehicle is equipped with robotic arms, a diverse set of measuring instruments and an underwater camera. Some question whether this state-of-the-art unmanned underwater vehicle can provide any help in the
