An immigration official checks a bus for Central American migrants at a roadblock north of Arriaga, Chiapas state, Mexico. In recent years the country has apprehended and deported more Central American migrants than the U.S. has.

An immigration official checks a bus for Central American migrants at a roadblock north of Arriaga, Chiapas state, Mexico. In recent years the country has apprehended and deported more Central American migrants than the U.S. has.