It’s a key question in the debate over the Trump administration’s Nuclear Posture Review:
Does adding a couple of low-yield weapons to each of America’s ballistic missile submarines make the U.S. safer, or move the U.S. closer to nuclear war?
Defense Secretary Jim Mattis believes a low-yield option that doesn’t rely on an airplane having to penetrate enemy air defenses increases deterrence, and therefore lowers the risk of miscalculation, especially by the Russians.
It’s a perfectly logical argument, but it’s one that arms reduction advocates and skeptical members of Congress have a hard time accepting.
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