To ask the Presiding Officer what the total cost of bomb proofing in relation to the Holyrood project has been, broken down by works package; what the original estimate of this cost was in respect of each package; whether any provision for bomb proofing was made in each contract when it was awarded and, if so, whether details of each such provision will be placed in the Scottish Parliament Information Centre, and what the reasons are for any extra costs incurred in each case.