CNN Erin Burnett OutFront January 1, 2015 00:19:00
447 in 2011. nearly two years after it went missing. locating debris at the bottom of the atlantic ocean. here in massachusetts, sonar helps identify and find debris like this submerged car. >> once we identify the target, we did this cross pattern and if we zoom in here and pull in that sonar file and went to that location and get a better high def image of the car. >> reporter: to get a real-time close-up image this remote vehicle, or rov, uses a map to locate the condition and then once there it picks up debris and bringing critical degrees and hopefully answers to the surface. >> joining m...