emergency on board, why didn't any of the passengers try to communicate with their family? >> or maybe they did. some experts say that they could have tried and there is a chance, believe it or not, that those final messages could be retrieved from the ocean floor if they can get to it. cnn's ted rowlands has more for us. >> reporter: paul weeks left his wife and two sons at home in australia to start a new job and boarded malaysia airlines flight 370. now his family and others are left wondering if their loved ones tried to use their cellphones to send a message before the plane went missing. but so many questions still unanswered, texts and e-mails could provide crucial details about what happened to flight 370 and all of that information could possibly still be retrieved. >> absolutely. i'm sure there are text messages, i'm sure there's drafts of e-mails, video, testimonials that people made. >> chad gough is a partner at