Watch National Geographic Americas Hardest Prisons Mexican Lockdown (2010) Online - Nuevo Laredo lies a few miles south of the US-Mexico border, across the Rio Grande from Texas. It’s a hot spot in the drug war – a border town known for its chilling violence and rampant corruption. And it’s the perfect home for a notoriously violent Mexican prison known as Cedes. In 2005, two American brothers jailed on homicide charges were stabbed to death in their cells. Only a month before that, a gang shootout on a basketball court left one inmate dead and several injured. The next day, two other inmates were stabbed to death and one was shot, caught in a barrage of 30 bullets. Guards later recovered six pistols and an AK-47 in inmate cells. Many of the inmates here are members of drug cartels and gangs like the Mexican Mafia. At Cedes, nobody ever talks ‘politics’ or about violence behind bars.