Re: I'll tell you one thing...
No, the main argument is that it wouldn't bloody work.
Almost all crashes and deaths on aircraft are at takeoff or landing, controlled flight into terrain, pilots forgetting how to fly the plane or due to cabin failure.
This wouldn't help in any of those, and would even make cabin failure more likely.
In fact I can't think of an air accident in the last decade where this could have saved the passengers - and a few where it'd make it worse.
- Perhaps help with MH370 as we still don't know what happened there. But probably not as the pilots appear to have been incapacitated.
