No matter how much they sympathize with the aspirations of the poor they serve, U.S. missionaries abroad have traditionally avoided taking sides in any partisan political conflict. The rule has been broken in Guatemala, where three priests and a nun of the Roman Catholic Maryknoll order have openly sided with the country's left-wing rebels.
Perhaps the best known of the U.S. missionary societies, the Maryknollers have been sending priests and nuns to serve in remote villages of Guatemala since 1943, currently have about 100 stationed there. Until recently, their number included Sister...