its well past time to upgrade all airliners to a real time cant turn off broadcast to satellites whats going on in the cabin along with gps tracking...... ideally flight data info too.

wierd mysteries like how did the pilots of a airliner miss their airport and fly for a hour to no where?

or how did the pilots manage to get people on the flight deck ignoring security rules?

pilot behavior should improve, no more lost airliners, no costly searches.....

lots of advantages