[2] In light of the social foment that began in the archdiocese in the 1970s, Rivera supported the controversial pastoral work undertaken by Father Rutilio Grande in the rural outskirts of San Salvador.
[9] Rivera's tenure was a delicate time, during which he sought to avoid Romero's fate, while still denouncing injustices and crimes of war in emphatic terms.
[10] In 1989, Archbishop Rivera presided over one of the darkest moments in the Civil War period, when the Jesuit staff of the Central American University of San Salvador Universidad Centroamericana "José Simeón Cañas" were massacred in assassinations that harkened back to murders at the inception of the war, such as the Romero assassination.
[8] Rivera reportedly told Alfredo Cristiani, the President of El Salvador to post soldiers outside his offices.
[8] Rivera moderated the negotiations of the final Peace Accords signed between the Farabundo Martí National Liberation Front (FMLN) and the Salvadoran government in 1992.
[9] During a 1996 visit to the Metropolitan Cathedral of the Holy Savior (Catedral Metropolitana de San Salvador) where Rivera and his predecessors are buried, Pope John Paul II said that Rivera "entered into eternity after having seen the peace, for which he and the other bishops of El Salvador had worked tirelessly, burst over the horizon.