The long-awaited Williams-Shapps rail review has been published by the Transport Secretary. While its headlines are a new public body \u2013 Great British Railways \u2013 providing single national leadership, better integration, simpler fares and smarter ticketing, there\u2019s much detail. To get to grips with the detail, Leon Daniels OBE talks through the plan with leading rail commentator Nigel Harris, editor of RAIL magazine.