quickly. good question. miranda asks why don't we have live cam ares on planes to when we detect something wrong we can help the innocent and take over and help? >> the airlines don't want it. i don't know one that shot 149 people at one time. >> that could be live sent to some place. we've got the technology. they have to do it. less a question for you from bob. why is the second black box -- this is for you les -- so hard to find if pinging like it's supposed to? could the pinger be damaged? >> well the pinger is used primarily for underwater situations. in this particular circumstance it would have been the emergency locater transmitter because of the impact with the ground. back to the camera situation, that wasn't going to help this airplane. having a camera in the cockpit,