The railways:Privatisation or nationalisation?

Thanks to the FT
https://www.youtube.com/watch?time_continue=3&v=U6V-HDbX9A8
and tutor2u
https://www.tutor2u.net/economics/reference/economics-of-rail-nationalisation?utm_medium=email&utm_campaign=Economics%20daily%20digest%20Mon%2016th%20April%202018&utm_content=Economics%20daily%20digest%20Mon%2016th%20April%202018+CID_154f61c00b2914ddddd4e97cc5a25b90&utm_source=CampMonitor&utm_term=Economics%20of%20Rail%20Nationalisation%20Study%20notes%20Should%20the%20UK%20railway%20industry%20be%20taken%20back%20into%20public%20ownership