President Claudia Sheinbaum drew a firm line barring U.S. forces from operating on Mexican soil. But in a northern border state, one local partner quietly helped the agency build a foothold.President Claudia Sheinbaum drew a firm line barring U.S. forces from operating on Mexican soil. But in a northern border state, one local partner quietly helped the agency build a foothold.
The Man Who Helped the C.I.A. Secretly Operate in Mexico
