A World Free of Nuclear Weapons:  Long op-ed by George Shultz, William Perry, Henry Kissinger and Sam Nunn on both urgent and long-term measures to cut the nuclear threat.  Meanwhile, US policy is going the other way: see U.S. Selecting Hybrid Design For Warheads and Complex 2030: DOE's Misguided Plan to Rebuild the U.S. Nuclear Weapons Complex.  11:11:49 AM