Walter Russell Mead discusses Israel’s options for retaliating against Iran, why the International Monetary Fund scolded the United States, Volodymyr Zelensky’s pleas for Israel-style support for Ukraine, and the work from home revolution on What Really Matters.

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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)