In considering the tragedy of youths in El Salvador being lured into gangs, it is worthwhile to ponder these words of assassinated archbishop Oscar Romero: God has sown goodness. No child is born evil. We are all called to holiness. The values that God has sown in the human heart and that present-day people esteem so highly are not rare gems; they are things that appear continually. Why then is there so much evil? Because the evil inclinations of the human heart have corrupted people, and they need purification. The original, pristine human vocation is goodness. We have all been born for goodness: no one is born with inclinations to kidnap, no one is born with inclinations to be a criminal, no one is born to be a torturer, no one is born to be a murderer. We have all been born to be good, to love one another, to understand one another. Why then, Lord, have so many weeds grown up in your field? The enemy has done it, says Christ. People have let weeds grow in their hearts: evil company,...