the funding of the rail should not be contingent on any audit results of past experience.  it is likely in an audit, there would be many questions raised, but they are not correctable in terms of bringing the cost down, the money spent is gone and will never be recovered until there is fraud or a criminal act involved.  the focus now it to see if there are any way that the future costs can be managed so that large cost increases do not occur or if there are any hidden costs, they must be addressed.  hence, the budget that hart provides must be as accurate and economical as possible.  if any audit needs to be done, it is on the budgeted figures, whether the estimates are sound, not on past financial figures, where the monies have already been spent.