Splitting the Difference on Nuclear Weapons

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What threats justify maintaining a nuclear arsenal? When, if ever, could such weapons be used? Those and other questions get some new answers in the Obama Administration's Nuclear Posture Review, reviving arguments that go back to World War II. Now that the Soviet Union is ancient history, the focus is on North Korea, Iran, proliferation and terror. What's the best way to deal with those challenges, reduce the chance of a confrontation and keep America as safe as possible? We hear from journalists, nuclear experts, military analysts and former Pentagon officials.




Warren Olney