Hopefully PAC will be able to shed some light on what has happened during the course of this 10-odd years. Including why overt lies were dreamed up and fed to politicians and public alike as part of the justification, the "bus-swallowing" voids that were never found for instance.
It makes one wonder about the justification for all the other projects too, the RESA for instance. Clearly our politicians are not close enough to nor cynical enough to be questioning some of what they are belt-fed about these projects.
And how much of this is produced to support other Depts? For instance, with the Liverpool Terminal costs and concerns rising and rising, I'd bet that the DOI were absolutely creaming themselves when the DfE announced that there'll be 500k visitors a year arriving in 10 years time who will need a Rolls Royce facility to be shepherded through. More justification for our "sunk costs" in Liverpool.
Mutual support indeed.