with an airplane crash after the plane's last sighting on radar. this happened on the east of malaysia. we want to get straight there and bringing out the pilot and energy, author rosenburg. you know about planes and lithium batteries and they can trigger fires and you talked about the weight. this is someone's blackberry. it powers our phones. this is the best form of energy and the best battery that we can get for the longest amount of time that is lightweight. that's why they use them. >> this miracle of modern technology pound for pound provides the most bang in energy for the weight and the buck. the lithium batteries in the airplanes are huge by comparison. you are talking about something which is probably two feet long