The US is deporting alleged members of the gang Trén de Aragua and paying El Salvador to house them in a mega-prison. But we don’t know if the deportees are actually gang members at all.

This episode was produced by Avishay Artsy and Amanda Lewellyn, edited by Amina Al-Sadi, fact-checked by Laura Bullard, engineered by Patrick Boyd, and hosted by Noel King.

Further reading: Inside El Salvador's notorious CECOT mega-prison. Transcript at vox.com/today-explained-podcast

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More than 250 suspected gang members deported from the U.S. arriving in El Salvador's mega-prison. Photo by El Salvador Presidency / Handout/Anadolu via Getty Images.

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