Sonar Options News Today

If that doesnt work, there are a number of sonar options. they can use sonar scans to sort of map the ocean floor. then theres the blue fin, basically a submarine. until a piece of debris is found, its very difficult to use those other pieces of equipment. >> once they do find the debris, they have to then find the wreckage. with air france, it was spread out over eight miles. >> yeah. all right. it appears malaysia is no closer this morning to figuring out just what happened. they are conductin...