Imagine your wife is on that plane... do you rather want a safe return or flag on coffin?

There will never be any way to prove a shoot-down is necessary after it happens. Given the current paranoid situation, pilots tend to over-react and can easily have innocent people killed.

Look at the headlines: Governement agent evicted from plane by pilot, various airports evacuated numerous times by false alarms, etc.

Except this time, any false alarm leads to innocent deaths. Sure, you can pretend to be patriotic and die "for the country". But is it really what the government what's you to think?

I will avoid flying altogether if that operation is in effect. Imagine having "auto self-destruct feature" in your car as a safety mechanism like airbag / seatbelt. In the event of an emergency, the car blows up before it impacts other vehicules. Will you still want to drive that car?