With more than 70,000 overdose deaths a year, the fentanyl crisis is rattling the doors of Congress.

During a legislative hearing, homeland security officials warned that Mexican cartels are selling counterfeit drugs that look authentic and producing them on an industrial scale. Lawmakers spoke about strengthening border surveillance and measures to reduce consumption in the United States. José López Zamorano brings us the details from Washington.

This article is only available in Spanish.

Explore more articles and episodes of this series on our Bridging the Gap page.

Photo: Cortesía de Moyses Zúñiga Santiago.