Footage shows London Paddington station desserted as RMT union members walk out on Wednesday in a long-running dispute over pay, jobs and working conditions.Teachers and train drivers are among half a million workers walking out today on the biggest strike day seen in Britain for more than a decade.Civil servants, university lecturers, bus drivers and security guards will join picket lines, while protests are set to be held across the country against the government’s controversial plans to legally enforce minimum service levels during strikes.PA