The U.S. Says It Could Stop A North Korean Missile. How?

North Korea has basically zero chance of hitting anyone but themselves with a nuke. But if they did manage to launch a missile, what technology do we have to stop it? In response to questions about North Korea's latest threats to nuke the U.S., White House Press Secretary Jay Carney said yesterday: "I can tell you that the United States is fully capable of defending against any North Korean ballistic missile attack." This is the most definitive statement of U.S. missile defense capability in rec...