I returned to Sandling, having read more about the Junction, the plans for the Channel Tunnel of years ago, the building and the closure of the railway. It is a good starting point for a walk. Leave the station with all its tedious traits of the twenty first century, ticket machines and endless announcements, corporate branding and expensive fares. There are deep undercurrents of class conflicts all across the railways, between the workers and the managers, between the passengers and the companies, between those who build the rolling stock and maintain the track and those who make decisions about rates of pay and working conditions. But none of this must surface, none of this murmuring can be allowed to be heard.