Again, there is proof that, from inside, a large plane, now in China, was deliberately crashed killing all on board. This should be easy to prevent.
Every soldier since Nuremberg knows that “orders are orders” is a flawed principle. Orders to commit war crimes must never be followed.
Similarly, the computers that fly planes must be programmed such that, no matter what, they cannot crash the plane, and this can’t be disabled.
Of course, there must be an override possible in case the sensors give wrong readings that by themselves would crash the plane inadvertently.
Such an overrule should only be possible after live permission by the plane manufacturer on the ground. It must ensure the station can’t be hijacked.
We must not lose sight of the fact that pilot suicide/murder cases with large planes are extremely rare, maybe one per decade. But, this should be prevented in any case, especially because it seems easy to do so.
Just like, they reinforced cockpit doors to keep out malicious intruders, the software must be reinforced to ignore malicious programming.
I don’t know why this wasn’t done yet, but, in any case, it’s high time.