John Rentoul witnessed the beginnings of HS2. As the project slips further into the quagmire, he looks at who – if anyone – shares responsibility for its failures

Heidi Alexander, the transport secretary, is to address MPs as the costly, crisis-hit rail project endures another setback

John Rentoul witnessed the beginnings of HS2. As the project slips further into the quagmire, he looks at who – if anyone – shares responsibility for its failures