US and South Korea Recommit to a Nuclear Bargain

Going to the nuclear well again risks it running dry

For over half a century, America has tried to use nuclear weapons to enhance its own security and the security of its allies. But nothing is cost-free: the more the United States and its allies turn to nuclear weapons, the more other states will want them, the more weapons states will build, and the harder it will be for the US and its allies to be secu…