Laying Undersomething News Today

Underwater to fix a pipeline. here the robol struggles to pick up a small tool. this operation alone took two weeks in 2,000 feet of water. a small task compared to retrieving mh 370s flight recorder, which could be about three miles underwater. >> you just sift through the trash until you find it you. might need to pull every piece of that trash up before you find it laying undersomething. >> reporter: the challenges dont end once the debris the collected. lifting thousands of feet to the surfa...