I think obviously those need to be considered at the right stage, so it depends on the level of assessment you're talking about. If we are talking about a strategic assessment where you're starting to broaden your examination of an issue for an area or you're looking at a policy or you're looking at plans, that obviously is a place where that needs to be part of that discussion.
As you get into a project, if that has already been properly vetted then I think it needs to fit within the scope of how it fits within that policy decision that has already been made.