Perhaps the hon. Gentleman will consider also the Brent Spar disposal. After careful consideration, Shell reached the conclusion that deep-water disposal would cost £12 million and that horizontal dismantling would cost £46 million. That did not take into account the environmental effects of having a structure such as the Brent Spar, full of toxic waste, in deep water. Does the hon. Gentleman regard that as another valid example of cost-benefit analysis not creating the right picture?