We worry about growing inequality and the dwindling middle class, and advocate various policies to reverse these trends. And yet at the same time, we talk about reducing or eliminating the tax deduction that does the most to promote a more equal distribution of economic well-being.
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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)