I think what I would say on ballistic missile defence is that Canada made the decision in 2005. We're now more than a decade from that decision. I think it's really important for any country to regularly look at decisions they've made in the past to make sure those decisions are still good decisions in today's day and era.
As I've said a couple of times in response to questions, the question of BMD is a very good policy question that should be looked at in a defence policy review.