A NEW report has cast fresh doubt over the future of the HS2 high speed rail link between Birmingham and London.The report, to the Public Accounts Committee, has predicted the taxpayer is likely to be burdened with an additional £4.8bn for the cost of the first stage of the high speed rail network between London and the Channel.The committee has blamed the Department of Transport for being overly optimistic about the number of passengers who would use the service.The committee has said more accurate predictions should be achi......for the full story register now for free or login below...