The Trump administration designated two more Mexican cartels—Juárez and Los Viagras—as foreign terrorist organizations this week, expanding the list to eight and giving federal authorities sweeping new powers to freeze assets, block financial networks, and prosecute anyone doing business with the groups. The question is whether Washington will use those powers or just let the designation collect dust while fentanyl keeps killing Americans.
The Federal Register published the designations Thursday. Secretary of State Marco Rubio stated both groups "have committed terrorist acts or pose a serious risk of committing acts that threaten the security of U.S. nationals or the national security, foreign policy, or economy of the United States," according to the Boston Globe. That is the standard language—but in this case, the facts back it up.
The Juárez Cartel controls the Ciudad Juárez–El Paso corridor, one of the busiest crossing points on the southern border. Founded by Amado Carrillo Fuentes—"El Señor de los Cielos," who pioneered using commercial jets to move narcotics in the 1990s—the outfit has funneled tons of drugs and people into the U.S. for decades. Breitbart reported that the cartel is also linked to the 2019 mass killing of nine American women and children from the LeBaron family, gunned down by cartel operatives who allegedly mistook them for rivals. The family had been petitioning for exactly this designation.
Los Viagras operates out of Michoacán, a state now home to three designated terrorist cartels. The group originally claimed to be a self-defense force protecting farmers from older cartels. That was a lie. As Breitbart noted, Los Viagras used the cover of self-defense to seize territory and consolidate control through extortion and synthetic drug production. Their leader, Nicolás Sierra Santana, was indicted in Washington, D.C., in June 2025 for conspiracy to traffic drugs. The State Department is offering $5 million for his capture. The group has used drones to drop explosives on rivals and on Mexican military forces.
President Trump began slapping the terrorist label on Latin American cartels in February 2025. The move matters because it unlocks tools that ordinary drug-trafficking designations do not—asset freezes, prosecution of anyone providing "material support," and the legal framework for more aggressive action, including potential military operations. Mexican analyst David Saucedo told the Globe the designation "is key to enabling the United States to take more decisive action along the border."
The Globe and the Atlanta Journal-Constitution both framed the designation primarily as diplomatic pressure on Mexican President Claudia Sheinbaum, noting the recent indictment of 10 current and former Sinaloa officials for cartel ties. That is part of the story. But the bigger part is what happens on this side of the border: the fentanyl pipeline, the communities hollowed out, the Americans dead. Both outlets buried the operational significance of the designation—what new authorities it actually grants—while Breitbart led with it.
Eight cartels are now designated. The legal architecture for a real war exists. The open question is whether the political will does—or whether this becomes another folder in a filing cabinet while the killing continues.
