What impresses me most in this tragedy is its illustration of the culture of rigorous process to get to the bottom of what happened so that lessons can be learn

What impresses me most in this tragedy is its illustration of the culture of rigorous process to get to the bottom of what happened so that lessons can be learned to make flying safer. Relentlessly followed for decades, in all countries, this culture has made large airliner air travel the safest way to get between two distant places. Ideas really can change the world.