Mr. Derek Rafferty:

-----evolution. The priority of the scheme is to remediate and get them fixed. On options 2 to 5, as the Deputy knows, a letter of assurance is issued with a 40-year guarantee should the non-affected blocks become affected, so there is a change to revisit that. On the overall issue about option 1 and so on, we are dealing with the science as it is now and that is the only way we can operate a scheme.