After almost 18 months of war, Russia鈥檚 nuclear threat continues to dominate headlines. Hudson Senior Fellow Rebeccah Heinrichs analyzed the present state of nuclear risk on C-SPAN鈥檚 podcast Booknotes+.

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The P4 laboratory, on the campus of the Wuhan Institute of Virology, in Wuhan, in China's central Hubei province. (Hector Retamal/AFP via Getty Images)