Martin Hellman writes "George Shultz served as President Reagan's Secretary of State, and Bill Perry as President Clinton's Secretary of Defense. Henry Kissinger was National Security Advisor and Secretary of State to both President Nixon and Ford. Sam Nunn was Chair of the Senate Armed Services Committee for eight years. Their key roles in the Cold War has led many to call them 'Cold Warriors.' That status makes their recent, repeated calls for fundamentally re-examining our nuclear posture all the more noteworthy. Their most recent attempt to awaken society to the unacceptable risk posed by nuclear weapons is an Op-Ed in today's Wall Street Journal titled Deterrence in the Age of Nuclear Proliferation. (That link requires a subscription to the Journal. There is also a subscription-free link (PDF) at the Nuclear Threat Initiative.) Key excerpts and links to other resources are available as well."