Chatter: Nuclear Launch Authority in Myth and Reality, with Hans Kristensen

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Lloyd Austin's hospitalization and delayed communication about it have spurred much commentary and questions about the role of the secretary of defense in the US nuclear-strike chain of command. David Priess spoke with Hans Kristensen, Director of the Nuclear Information Project at the Federation of American Scientists, about his path to expertise on nuclear issues, the chain of command for nuclear strike authorization (and recent comments from elected representatives that misunderstand it), alternatives to the current system, fictional scenarios of nuclear launches, what is known about different nuclear states' authorization processes, the "letters of last resort" for UK nuclear…