 For many, many years, the Arctic was literally a blank spot on the map. That's all changed. Now, the Arctic is important. Not only do we have to worry about being able to operate up there safely, we have to worry about, is this going to be a future site of conflict, in addition to economic competition. The Arctic is critical to U.S. national interests because we are one of five nations that have Arctic ocean waterfront property. While we've always had military capabilities in the Arctic, we've been lacking in the surface capability to actually be there. The only way you can reliably do that is with a polar icebreaker.