to make planes more safer. (palm print technology/audio videos in real time of inside planes

i was talking with my friend, about how to make planes more safer. i think with the mystery of the missing mh370 plane, it's raised lots of questions. my friend and i were discussing, about some possible scenarios, to make the planes more safer. so that they could know, if suspicious activity was going on, in the plane.

1- To Ensure the cockpit is only occupied, by the pilots, have a very sophisticated safety door, where only the pilots could go into, and lock with, their palm print. This would most 100% ensure, that only the pilots can access the cockpit. (if this technology was in place already, we would know, most likely, if only those 2 pilots were in the cockpit of flight 370). their palm prints, could be the print/password/code, only, that gets them in, and locking the cockpit.

2- Real time video Surveillance and audio, being transmitted back to the air traffic control, in real time. audio of the cockpit, audio of the entire plane, if anything is out of place, it would be known right away, by the air traffic control. These days, police cars, and many other video Surveillance, helps in tracking down, people who steal, and tracks crimes being committed, even license plates being taken picture of, if someone runs a red light. Video-Audio, in real time, could have shown those air traffic control workers, what was happening to that plane, and people inside of it, in real time. these days, if someone is stealing a candy bar in a gas station, that can be seen, so, why can't there be real time audio/visual videos, on planes? to make them safer? they certainly have enough money, to do this technology. i think with these 2 points, this mystery may have been solved by now. the technology these days, is beyond outstanding, and we as a world, where we want to be free, and safe, should have the very best technology helping, to ensure safety.

Palm Print technology being, the only way for pilots to get into a cockpit, and real time audio/visual video, of inside of the plane. this could make planes safer, and can help give clues, when these awful situations and mysteries happen.