North Korea Cultivates Ultimate Deterrence

North Korea has long been at work developing a comprehensive nuclear deterrent -- and it's making progress. On Feb. 12, the country launched a Pukkuksong-2 medium-range ballistic missile, proving what was once a distant goal is now a tangible reality. In fact, North Korea has conducted several nuclear and missile tests recently that have caused alarm among its adversaries. And it won't soon give up its program in any potential negotiations. Instead it will cultivate its nuclear capabilities in the hopes that doing so will ensure its security. Meanwhile, regional and global powers are adapting their own military strategies in response....