This is a great question, which we think about a lot. When you talk about threats, there are two elements in the calculus of threats, and they are capability and intent.
We've seen for several years now that in terms of capabilities the Russians are going through a full modernization program. They are building cruise missiles that have a longer reach, both precision-guided conventional and nuclear ones, as well as submarine-launched cruise missiles. The intent is the difficult part. Right now we don't see an intent of armed conflict in the Arctic, of Russia against North America; however, the intent can change very rapidly. Who would have thought in regard to Mr. Putin's intent that the next day after the Olympics he would invade his neighbouring country, the Crimea—