will hear it. they are stopping for three to four minutes and listening to wait to see if there is a response. >> in the hunt for red october. the two ships are listening and heard sounds that sounded like the banging on the hull was a sort of metal tool. that's what it sounded like and they coordinated the line to that spot and x marks the spot and 35 square kilometers around. the subhunter aircraft and one of the most sophisticated in the world is flying over that square mileage to see if they can detect anything. >> based on the technology, can the sound have enough information to in on the