Mystery of Flight MH370 -- Why isn't Black Box Data also uploaded in real-time via satellite, via internet, to data cent

[DIYguy]

1) . Is the satellite coverage good enough?

2) . Roughly how much might this add to the cost of a plane ticket [just looking for a ball park estimate here]?

3) . If implemented, should the data be encrypted, and how much more would that cost?

Full version of Title Question:

Why isn't Black Box data -- at least key components such as the GPS coords, altitude, airspeed, heading, cabin-pressure, auto-pilot settings, emergency-systems status-codes -- also uploaded in real time to the internet via satellite?

The idea would be -- not to replace the Black Box Recorder -- but to supplement the Black Box Recorder.

The FAA could assign the task of Internet Black-Box Data-Management to either the manufacturer of the plane, the servicer of the plane, the owner of the plane, or the airlines operating the plane.

thanks for your answers
To reduce the cost:

The continuous real-time uploading (of the key components of Black Box Data as outlined above) to begins ONLY when intentionally triggered by the pilot, copilot, or flight-attendant-in-charge, OR triggered remotely from the ground. . Once turned on, cannot be turned off by anyone until end-of-flight.

The key here is that the uploading system must be independently powered and incapable of being messed with by anyone on the plane, just like the current Black Box set-up.