Kerry clarified a statement he made Saturday in Beijing, when he told reporters the U.S. could scale back its missile-defense posture in the region if North Korea goes nuclear-free.
Yet, a Kremlin spokesman has already served notice that Moscow will feel free to abrogate the START follow-on treaty if it believes that U.S. missile defenses in Europe are a threat to its deterrent.
While some of these weapon and sensor systems like the Electromagnetic Railgun or the Free Electron Laser are at least a decade away, the Laser Weapon System and Air and Missile Defense Radar systems are almost ready for prime time deployment today.