its a little weird how some people are adamant that nothing can or should be done about tracking of aircraft. the incidence of 447/370/8501 events is rising and joe public must be thinking flying is getting to be a risky business. you can bet that irrational or not, he IS comparing the mobile phone versus aircraft and is not impressed to learn that apparently the desired safety level comes at too high a cost. might not market forces drive a change before long?