Does my hon. Friend agree that one of the main reasons why occupants are separated from their vehicles on passenger ferries is the danger of the occasional spontaneous combustion of a vehicle? Does he therefore understand the concern about what would happen should that occur when passengers are inside their vehicles in enclosed carriages on a train in the channel tunnel? Can he assure us that research has been undertaken that will set people's minds at rest? Will he ensure that such research is published so that the public can be satisfied?