Yes, of course, we had to take it into account, because one of the extremes of the incidents could be a need to rescue somebody from the North Pole, and that's the extreme. It is a very low probability event and yet it's one that makes a lot of demands, if you like, when we include all the constraints. That's where we mentioned that given the constraints of the SOR, it would have allowed only one hour of search, which is probably not adequate. So this is where we were driven to this suggestion that perhaps a single aircraft type is too constrained.
On February 14th, 2011. See this statement in context.