CNN Early Start With John Berman and Christine Romans April 11, 2014 09:02:00
Using technology to scan for underwater pings on loan from the u.s. navy, also the british sh ship, "hms echo" is in that search area now as well, using its technology to try and map the ocean floor and also try and detect any further signals from the beacons from that missing malaysian airliner. hopes were elevated, as you mentioned, earlier today by the australian prime minister, tony abbott. he's on official visit to china. take a listen to what he said earlier today. >> we have very much narrowed down the search area, and we are very confident that the signals that we are detecting are fro...