My hon. Friend is making a very important point, although I am not convinced that the new clause is the right way forward. He talks about business cases, and my concern is that there are indirect impacts that should also be considered. For example in my constituency, on the midland main line, there will be an impact on the Chesterfield Canal Trust’s attempt to regenerate our area; that has been held up now for nearly six years because we cannot get a guarantee from HS2 that it will not be impacted. Those kinds of costs must also be considered.