The BBC is bringing back shortwave radio broadcasts to counter censorship and disinformation in Russia and Ukraine. Professor D.W. Stupples explains.

This episode of Today, Explained was produced by Victoria Chamberlin, edited by Matt Collette, engineered by Efim Shapiro, fact-checked by Laura Bullard, and hosted by Noel King.

Transcript at vox.com/todayexplained

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