Mario Terán is married with five children, and covertly lives in Paraguay under the alias of "Pedro Salazar". Some speculate that he has an agreement with the U.S. CIA, who is said to be protecting him, while others theorize that he is afraid of a Cuban unit seeking revenge.
This was first revealed when Terán's son wrote a letter to the Santa Cruz de la Sierra newspaper El Deber thanking the Cuban doctors. In 2007 Granma opined on the treatment, stating:
"Four decades after Mario Terán attempted to destroy a dream and an idea, Che returns to win yet another battle. Now an old man, he [Terán] can once again appreciate the colors of the sky and the forest, enjoy the smiles of his grandchildren and watch football games."