I think it would make a lot more technical, economic and environmental sense to make air travel greener and quieter through regulation and investment in Europe'

I think it would make a lot more technical, economic and environmental sense to make air travel greener and quieter through regulation and investment in Europe's world-class aerospace industry rather than attempt to build integrated high-speed rail across the continent at vast cost and over huge delays spent negotiating with different landowner every 200 meters.