As the Trump administration ramps up its fight against drug trafficking — from tougher borders to deadly strikes at sea — experts say the U.S. may be missing a huge part of the problem: prisons.

Across Latin America, many of the region’s most powerful criminal organizations weren’t born on the streets or in jungles, but behind bars. Overcrowded, underfunded prisons have turned into breeding grounds where gangs recruit, organize, and run operations — sometimes more efficiently than the state itself.

Groups like Tren de Aragua in Venezuela, PCC and Comando Vermelho in Brazil, and gangs in Ecuador all grew stronger inside prison systems where inmates often control daily life. In these environments, gangs provide protection, food, and basic services the state doesn’t — making membership less about choice and more about survival.

Even worse, prison leaders often run drug trafficking, extortion, and killings from inside their cells, using prisons as safe headquarters. Power struggles over control have led to brutal massacres, especially in Ecuador, where hundreds of inmates have been killed in recent years.

While politicians across the region push hardline “mano dura” approaches — mass arrests, longer sentences, mega-prisons like El Salvador’s CECOT — analysts warn these strategies can backfire if prison conditions don’t improve. Packing more people into broken systems often just hands gangs more recruits.

The takeaway? Without fixing prisons — reducing overcrowding, restoring state control, and offering real alternatives — crackdowns outside won’t stop crime. As one former inmate put it: if you brutalize people inside, don’t be surprised when they come out as soldiers for crime.